VictoriaMetrics 1.146.0 → 1.154.1

16 releases · 2 breaking changes · 29 security fixes · 0 advisories fixed

29security2breaking0deprecated28feature140fix

Is 1.146.0 affected?

Breaking changes

breaking BUGFIX: vmsingle, vmselect in VictoriaMetrics cluster and vmctl: accept scientific notation with sub-second precision (e.g. 1.784144612388E9) for timestamp args such as start and end in /api/v1/query_range and --vm-native-filter-time-start and --vm-native-filter-time-end in vmctl. Previously,… in 1.149.0
breaking BUGFIX: vmsingle, vmselect in VictoriaMetrics cluster and vmctl: accept scientific notation with sub-second precision (e.g. 1.784144612388E9) for timestamp args such as start and end in /api/v1/query_range and --vm-native-filter-time-start and --vm-native-filter-time-end in vmctl. Previously,… in 1.148.1

Security changes

security Fixes GHSA-c7pm-322g-r9gf: Missing Brute Force Protection in 1.154.1
security Fixes GHSA-c7pm-322g-r9gf: Missing Brute Force Protection in 1.154.0
security SECURITY: upgrade Go builder from Go1.27.1 to Go1.27.2. See the list of issues addressed in Go1.27.2. in 1.154.0
security SECURITY: vmauth: slow down requests with invalid auth tokens even if unauthorized_user has URLs configured. Previously, such requests were proxied to unauthorized_user without delay, which allowed brute-forcing auth tokens. See GHSA-rpfx-hrcp-f73x. in 1.154.0
security SECURITY: vmui: prevent cross-site scripting (XSS) on Metric Relabling Debug, Query Analyzier, and Dashboards pages. See GHSA-m2x2-9xpq-mmq5. in 1.154.0
security BUGFIX: vmauth: fix SSO login failure Invalid state parameter caused by a race condition when multiple concurrent unauthenticated requests each set their own CSRF cookie. See #10278-comment and. in 1.154.0
security SECURITY: vminsert, vmagent and vmsingle: properly apply memory limits to the zstd encoded blocks ingested via native import. This prevents excessive memory allocation during ingestion when handling maliciously crafted requests. See GHSA-8g4f-32hw-vqf8. in 1.153.0
security SECURITY: vmauth: restrict redirects in the OIDC Discovery HTTP client to stay within the original request host. See GHSA-xxqh-2hcc-9fp6. in 1.153.0
security SECURITY: upgrade base docker image (Alpine) from 3.24.1 to 3.24.2. See Alpine 3.24.2 release notes. in 1.153.0
security BUGFIX: vmselect, vminsert, vmagent and vmsingle: ignore empty extra_label, extra_filters and extra_filters[] query args instead of returning an error. This allows dropping client-provided values for these query args via url_prefix in vmauth as described in the security docs. See. in 1.153.0
security SECURITY: upgrade Go builder from Go1.26.6 to Go1.27.1. See Go 1.27 release notes. in 1.152.0
security SECURITY: vmauth: fix authorization bypass in JWT-based routing when match_claims values are used. See GHSA-f99m-22fh-qw96. in 1.152.0
security SECURITY: vmsingle and vmselect in VictoriaMetrics cluster: properly escape server-side errors returned by /metric-relabel-debug since they could contain parts of user input. This prevents XSS attacks on the /vmui/#/relabeling page. See GHSA-vw10j-rqhg-qff9. in 1.152.0
security SECURITY: vmsingle, vmagent, vminsert and vmselect in VictoriaMetrics cluster: check HTTP Basic Auth credentials from the -httpAuth. command-line flags for cases that do not verify the corresponding *AuthKey command-line flag on its own. Previously, HTTP Basic Auth could be skipped for request… in 1.151.0
security SECURITY: upgrade Go builder from Go1.26.5 to Go1.26.6. See the list of issues addressed in Go1.26.6. in 1.150.0
security SECURITY: vmsingle and vmselect in VictoriaMetrics cluster: restrict /api/v1/admin/tsdb/delete_series, /tags/delSeries endpoints to POST method only to prevent some SSRF-based data deletion attacks. See. in 1.149.0
security SECURITY: upgrade Go builder from Go1.26.8 to Go1.26.9. See the list of issues addressed in Go1.26.9. in 1.148.6
security SECURITY: vminsert, vmagent and vmsingle: properly apply memory limits to the zstd encoded blocks ingested via native import. This prevents excessive memory allocation during ingestion when handling maliciously crafted requests. See GHSA-8g4f-32hw-vqf8. in 1.148.5
security SECURITY: vmauth: restrict redirects in the OIDC Discovery HTTP client to stay within the original request host. See GHSA-xxqh-2hcc-9fp6. in 1.148.5
security SECURITY: upgrade base docker image (Alpine) from 3.24.1 to 3.24.2. See Alpine 3.24.2 release notes. in 1.148.5
security BUGFIX: vmselect, vminsert, vmagent and vmsingle: ignore empty extra_label, extra_filters and extra_filters[] query args instead of returning an error. This allows dropping client-provided values for these query args via url_prefix in vmauth as described in the security docs. See. in 1.148.5
security SECURITY: upgrade Go builder from Go1.26.6 to Go1.26.7. See the list of issues addressed in Go1.26.7. in 1.148.4
security SECURITY: vmauth: fix authorization bypass in JWT-based routing when match_claims values are used. See GHSA-f99m-22fh-qw96. in 1.148.4
security SECURITY: vmsingle and vmselect in VictoriaMetrics cluster: properly escape server-side errors returned by /metric-relabel-debug since they could contain parts of user input. This prevents XSS attacks on the /vmui/#/relabeling page. See GHSA-vw10j-rqhg-qff9. in 1.148.4
security SECURITY: vmsingle, vmagent, vminsert and vmselect in VictoriaMetrics cluster: check HTTP Basic Auth credentials from the -httpAuth. command-line flags for cases that do not verify the corresponding *AuthKey command-line flag on its own. Previously, HTTP Basic Auth could be skipped for request… in 1.148.3
security SECURITY: upgrade Go builder from Go1.26.5 to Go1.26.6. See the list of issues addressed in Go1.26.6. in 1.148.2
security SECURITY: vmsingle and vmselect in VictoriaMetrics cluster: restrict /api/v1/admin/tsdb/delete_series, /tags/delSeries endpoints to POST method only to prevent some SSRF-based data deletion attacks. See. in 1.148.1
security SECURITY: upgrade Go builder from Go1.26.4 to Go1.26.5. See the list of issues addressed in Go1.26.5. in 1.148.0
security SECURITY: upgrade base docker image (Alpine) from 3.23.4 to 3.24.1. See Alpine 3.24.1 release notes. in 1.147.0

Every release in between

1.154.1 Oct 20, 2026 Release notes ↗

securityFixes GHSA-c7pm-322g-r9gf: Missing Brute Force Protection

fixBUGFIX: vmauth: do not slow down requests with auth tokens if no users are configured. Previously, such requests were delayed by 2-3 seconds before being proxied to unauthorized_user, though there were no users to brute-force. This affected setups where one vmauth authenticates requests and…

1.154.0 Oct 12, 2026 Release notes ↗

securityFixes GHSA-c7pm-322g-r9gf: Missing Brute Force Protection

securitySECURITY: upgrade Go builder from Go1.27.1 to Go1.27.2. See the list of issues addressed in Go1.27.2.

securitySECURITY: vmauth: slow down requests with invalid auth tokens even if unauthorized_user has URLs configured. Previously, such requests were proxied to unauthorized_user without delay, which allowed brute-forcing auth tokens. See GHSA-rpfx-hrcp-f73x.

securitySECURITY: vmui: prevent cross-site scripting (XSS) on Metric Relabling Debug, Query Analyzier, and Dashboards pages. See GHSA-m2x2-9xpq-mmq5.

featureFEATURE: vmagent,vminsert in VictoriaMetrics cluster and Single-node VictoriaMetrics: add /influx/ping endpoint, which returns the X-Influxdb-Version HTTP header. Some InfluxDB clients, such as the Jenkins InfluxDB plugin, read the server version from this endpoint. See. Thanks to @Vandit1604 for…

featureFEATURE: vmauth: add oidc.auth_params option to SSO config for passing additional query parameters to the IdP authentication request, e.g., hd for narrowing the Google account chooser to a single domain. Combine it with match_claims to enforce the domain restriction. See these docs for more…

otherFEATURE: vmsingle and vmstorage in VictoriaMetrics cluster: abort incoming requests when a client disconnects and during graceful shutdown. See.

otherFEATURE: vmsingle and vmselect in VictoriaMetrics cluster: cancel query requests if client disconnects. See.

fixBUGFIX: all VictoriaMetrics components: correctly configure TCP keep-alive active probes. See.

fixBUGFIX: all VictoriaMetrics components: properly match regexps that start with an alternation or a character class and continue with .foo. or .+foo.+, for example (a|b).foo.. Previously the leading part was ignored when matching relabeling regex and if filters and stream aggregation match filters,…

fixBUGFIX: alerts: fix incorrect results for TooHighChurnRate and TooHighSlowInsertsRate in cluster alerting rules. Previously due to incorrect expressions, these rules stayed inactive since v1.108.0 and could produce false positives since v1.153.0. See. Thanks to @transacid for contribution.

fixBUGFIX: stream aggregation: properly add timeseries for increase, increase_prometheus, total and total_prometheus aggregation functions when enable_windows: true is set. See. Thanks to @Hoipang for contribution.

fixBUGFIX: vmalert: keep using notifiers from the previously applied notifier configuration file if the updated config fails to start, for example due to a temporary service discovery error, and retry applying it on the next reload. Previously, vmalert stopped the old notifiers before starting the…

fixBUGFIX: vmalert: copy alert labels before applying alert_relabel_configs from the notifier configuration file, preventing different alertmanagers from affecting each other's labels. See.

fixBUGFIX: vmagent and vmalert: set the Host HTTP request header to the resolved DNS SRV target instead of the SRV name when the url uses the srv+ prefix. Previously requests could fail at reverse proxies and load balancers, which route by the Host header. See.

fixBUGFIX: vmauth: fixes rare data corruption on HTTP request retries. See.

securityBUGFIX: vmauth: fix SSO login failure Invalid state parameter caused by a race condition when multiple concurrent unauthenticated requests each set their own CSRF cookie. See #10278-comment and.

fixBUGFIX: vmauth: fix misleading missing 'Authorization' request header response for JWT-authenticated users when the requested path does not match any url_map. Now it correctly returns 400 Bad Request with missing route error, matching the behavior of Basic Auth and Bearer-token users. See.

fixBUGFIX: vmbackup and vmbackupmanager: add -s3SkipTaggingDirective command-line flag for S3-compatible storage that rejects the x-amz-tagging-directive and x-amz-tagging headers. See.

fixBUGFIX: vmselect in VictoriaMetrics cluster: add missing accountID, projectID and multiTenant fields to topByAvgMemoryUsage results at /api/v1/status/top_queries. See.

fixBUGFIX: vmselect in VictoriaMetrics cluster: prevent rare resource leak if -search.skipSlowReplicas flag is set. See.

fixBUGFIX: vmsingle and vmselect in VictoriaMetrics cluster: properly execute group_left(...) and group_right(..) queries when the join is then combined with another selector. See.

fixBUGFIX: vmsingle and vmstorage in VictoriaMetrics cluster: prevent possible crash with cannot decompress zstd data... panic on darwin, windows, freebsd, openbsd, linux/arm, linux/ppc64le, linux/386, linux/s390x, and -pure builds. The linux/amd64 and linux/arm64 builds are not affected. See.

fixBUGFIX: vmsingle: properly apply -streamAggr.enableWindows command-line flag to stream aggregation rules. Previously, the flag was ignored by aggregation rules defined in -streamAggr.config and was applied only during config validation with -dryRun and to the standalone deduplication configured…

fixBUGFIX: vmsingle and vmstorage in VictoriaMetrics cluster: properly release memory after historical data backfilling. Previously storage kept 8MiB*CPU memory for each month of ingested data until restart. See. Thanks to @mars71003219 for contribution.

fixBUGFIX: vmui: prevent overriding the serverUrl, tenantId, theme, and isDarkTheme settings via query parameters. See.

1.153.0 Sep 28, 2026 Release notes ↗

securitySECURITY: vminsert, vmagent and vmsingle: properly apply memory limits to the zstd encoded blocks ingested via native import. This prevents excessive memory allocation during ingestion when handling maliciously crafted requests. See GHSA-8g4f-32hw-vqf8.

securitySECURITY: vmauth: restrict redirects in the OIDC Discovery HTTP client to stay within the original request host. See GHSA-xxqh-2hcc-9fp6.

securitySECURITY: upgrade base docker image (Alpine) from 3.24.1 to 3.24.2. See Alpine 3.24.2 release notes.

otherFEATURE: vmalert: skip a redundant pending state when an alert can be restored directly to firing after restart. See.

otherFEATURE: vmauth: log informative message when a JWT token has no vm_access claim and default_vm_access_claim is not configured, if -logInvalidAuthTokens is enabled. See JWT claim-based request templating or.

otherFEATURE: dashboards/vmauth: update the dashboard to upstream Grafana version, fix typos and inconsistencies, improve resource usage panels.

otherFEATURE: vmauth: support printing HTTP headers in the Access Logs. Only headers listed in access_log.headers list will be printed in the logs. This feature should help troubleshooting pipelines that rely on HTTP headers.

otherFEATURE: vmui: move auto-refresh controls from the header to the Execute button dropdown and display the selected interval in the button text. See.

otherFEATURE: vmstorage in VictoriaMetrics cluster: support ingesting data directly via Prometheus Remote Write v1 protocol for vmstorage. This feature can be enabled by setting -enableIngestionAPI command-line flag and is disabled by default. See remote write directly to vmstorage and.

featureFEATURE: vmauth: add Single sign-on (SSO) support via OpenID Connect (OIDC). vmauth redirects unauthenticated browser requests to the configured Identity Provider (IdP), verifies the IdP response, and sets a session cookie for subsequent requests. See.

featureFEATURE: vmsingle and vmstorage in VictoriaMetrics cluster: add support for opt-in fadvise(FADV_RANDOM) and madvise(MADV_RANDOM) hints for data part files, which can reduce disk I/O and improve page cache efficiency. To enable, set -fs.disableAdviseRandomRead=false. If you experience issues after…

fixBUGFIX: all VictoriaMetrics components: create the Unix domain socket for -httpListenAddr=unix:/path/to/socket with permissions according to the umask of the process. Previously it was always created with 0600 permissions, so processes running under other users, such as a reverse proxy, couldn't…

fixBUGFIX: stream aggregation: serially push samples to stream aggregation jobs. This helps reduce CPU overhead. 11f488d8ff introduced parallel processing for this stage, which introduced extra CPU overhead while only providing negligible sample lag reduction. See.

fixBUGFIX: vmagent: add missing X-Influxdb-Version HTTP header to influxdb API responses. See.

fixBUGFIX: vmagent: disable metrics metadata sending for MDX remote write destinations. See.

fixBUGFIX: vmagent and vmsingle: properly discover *_sd_config targets. Previously scrape targets were preserved until the process restart if *_sd_config returned an empty targets response. See for details. Thanks to @evkuzin for contribution.

fixBUGFIX: vmagent: properly reload SSL certificate for kafka producer and consumer. See.

fixBUGFIX: vmalert: properly reload alert_relabel_configs from the notifier configuration file. Previously, this config was applied only at startup and was not updated on config reload. See.

securityBUGFIX: vmselect, vminsert, vmagent and vmsingle: ignore empty extra_label, extra_filters and extra_filters[] query args instead of returning an error. This allows dropping client-provided values for these query args via url_prefix in vmauth as described in the security docs. See.

fixBUGFIX: vmauth: respect the -enableTCP6 flag when discovering backend IPs via discover_backend_ips or -discoverBackendIPs. Previously, discovery included IPv6 addresses even when IPv6 support was disabled. See.

fixBUGFIX: vmui: fix synchronization of the custom query step with URL changes on the predefined dashboards page. See.

fixBUGFIX: vmsingle and vmselect in VictoriaMetrics cluster: slightly reduce CPU usage during concurrent queries execution. See.

1.152.0 Sep 14, 2026 Release notes ↗

securitySECURITY: upgrade Go builder from Go1.26.6 to Go1.27.1. See Go 1.27 release notes.

securitySECURITY: vmauth: fix authorization bypass in JWT-based routing when match_claims values are used. See GHSA-f99m-22fh-qw96.

securitySECURITY: vmsingle and vmselect in VictoriaMetrics cluster: properly escape server-side errors returned by /metric-relabel-debug since they could contain parts of user input. This prevents XSS attacks on the /vmui/#/relabeling page. See GHSA-vw10j-rqhg-qff9.

featureFEATURE: vmauth: add the deny_paths option to url_map to reject a subset of paths matched by src_paths or other src_* options with 403 Forbidden (401 Unauthorized for anonymous requests) instead of enumerating every allowed path. See. Thanks to @andriibeee for contribution.

otherFEATURE: alerts-health: split TooManyLogs alert into TooManyErrorLogs and TooManyLogs. TooManyLogs now covers only warn-level logs and aggregates them per job and instance. TooManyErrorLogs fires on error, fatal, and panic logs with per-location granularity, making it easier to identify the exact…

otherFEATURE: vmui: show the range between the minimum and maximum values for each graph line in the legend. See. Thanks to @umer901 for contribution.

fixBUGFIX: all VictoriaMetrics components: hide values passed to -pushmetrics.header in startup logs, /metrics, and /flags, since they can contain sensitive HTTP headers such as Authorization and API keys. See.

fixBUGFIX: vmsingle, vmagent and vminsert in VictoriaMetrics cluster: fix insert requests getting stuck after another insert request times out, causing clients to time out while waiting for a response. See VictoriaLogs#1743.

fixBUGFIX: vmselect in VictoriaMetrics cluster: apply the le filter at /api/v1/status/metric_names_stats after merging request counters from all vmstorage nodes. Previously, the endpoint could report actively queried metrics as unused when the local request counter was zero on one of the nodes. See.…

fixBUGFIX: vmagent: now MDX discards cardinality_estimate and cardinality_churn_ratio metrics exposed by vmestimator service..

fixBUGFIX: vmselect in VictoriaMetrics cluster: allow access to /prometheus/api/v1/admin/tsdb/delete_series and graphite/tags/delSeries using only the corresponding -deleteAuthKey, even when -httpAuth. is also configured, without additionally requiring -httpAuth. credentials. See.

1.151.0 Aug 31, 2026 Release notes ↗

securitySECURITY: vmsingle, vmagent, vminsert and vmselect in VictoriaMetrics cluster: check HTTP Basic Auth credentials from the -httpAuth. command-line flags for cases that do not verify the corresponding *AuthKey command-line flag on its own. Previously, HTTP Basic Auth could be skipped for request…

featureFEATURE: all VictoriaMetrics components: add support for accepting HTTP requests over Unix domain socket at -httpListenAddr. For example, -httpListenAddr=unix:/run/victoria-metrics.sock. See VictoriaLogs#1618.

featureFEATURE: vmagent, vmsingle, vmstorage and vmselect in VictoriaMetrics cluster: expose the vm_app_prev_shutdown_unclean gauge. It is set to 1 when the previous process run didn't shut down cleanly. Added the UncleanShutdown alerting rule, which fires for 10 minutes after an unclean shutdown is…

featureFEATURE: vmui: show the selected time zone UTC offset next to the date/time controls and allow opening time zone settings from it. See.

otherFEATURE: vmsingle, vmagent, vmalert, and vmselect in VictoriaMetrics cluster: show how the default value is calculated for command-line flags which derive it from the number of available CPU cores. For example, -maxConcurrentInserts now prints (default 16 = 2*cgroup.AvailableCPUs()) in -help…

featureFEATURE: vmagent: introduce vmagent_kafka_consumer_broker_rtt_seconds and vmagent_kafka_consumer_fetch_queue_size metrics for Kafka consumer integration. These metrics help troubleshoot slow Kafka consumption. See.

fixBUGFIX: alerts: fix AlertingRuleResultsApproachingLimit and RecordingRuleResultsApproachingLimit alerting rules in vmalert alerting rules. The alerts could produce incorrect results or fail to fire when vmalert_group_rule_results_limit returned multiple samples per (group, file) label combination,…

fixBUGFIX: vmagent and vminsert in VictoriaMetrics cluster: fix infinite loop in the OpenTelemetry Firehose ingestion endpoint (/opentelemetry/api/v1/push) when receiving a malformed record with an incomplete varint in the data field. Previously this caused the goroutine to spin forever, permanently…

fixBUGFIX: vmalert-tool: reuse connections to -remoteWrite.url when writing the results of recording rules and alerts. Previously every series was sent over a new connection, which left a lot of sockets in TIME_WAIT state and could exhaust the ephemeral port range. The number of idle connections can…

fixBUGFIX: vmsingle and vmselect in VictoriaMetrics cluster: prevent process crash in sort_by_label_numeric() and sort_by_label_numeric_desc() when a label value contains a number with 309 or more digits. See.

fixBUGFIX: vmsingle and vmstorage in VictoriaMetrics cluster: fixes rare metrics metadata partial search response. See.

fixBUGFIX: vmctl: reuse connections in vm-native mode when --vm-concurrency exceeds 2. Previously the number of idle connections was limited to 2 per host, which was insufficient when --vm-concurrency was bigger than 2. See.

fixBUGFIX: vmsingle and vmselect in VictoriaMetrics cluster: properly re-use memory if query aggregation returns error. See.

fixBUGFIX: vmselect in VictoriaMetrics cluster: fail the query request directly when there is not enough disk space to store temporary search results. Previously, such queries could lead to vmselect crash. See.

fixBUGFIX: vmselect in VictoriaMetrics cluster: consistently re-use memory during storage blocks unpacking on parsing storage block error. See.

fixBUGFIX: vmalert: fix parsing of instant query sample timestamps from Prometheus-compatible data sources. Previously, decimal (e.g. 1786458420.123) or scientific-notation (e.g. 1.78645842E9) values were silently truncated to 0. See. Thanks to @missusk for the contribution.

fixBUGFIX: vmctl: properly release the export and import requests during migration requests fails in vm-native mode. Previously, failed export/import requests could have left hanging at the source or the destination. The fix is supposed to improve the resiliency of vmctl during long-running migrations.

fixBUGFIX: vmagent: include vm_account_id and vm_project_id labels in the instance identity used by monitoring data exchange filtering. Previously, when multitenant handlers were enabled, series from different tenants sharing the same job and instance labels could be misidentified as coming from a…

fixBUGFIX: vmsingle, vminsert in VictoriaMetrics cluster and vmagent: fix process crash at /api/v1/import/native endpoint when receiving a specially crafted ~45-byte request..

fixBUGFIX: vmsingle, vmagent and vmstorage in VictoriaMetrics cluster: allow access to /remotewrite-relabel-config, /api/v1/status/remotewrite-relabel-config, /remotewrite-url-relabel-config, /api/v1/status/remotewrite-url-relabel-config and /internal/log_new_series with only the corresponding…

1.150.0 Aug 17, 2026 Release notes ↗

securitySECURITY: upgrade Go builder from Go1.26.5 to Go1.26.6. See the list of issues addressed in Go1.26.6.

otherFEATURE: relabeling: reduce CPU usage up to 30% when matching relabeling rules with multiple if expressions containing exact metric names. Expressions for other metric names are now skipped before evaluating their remaining label filters. See. Thanks to @nevgeny for contribution.

featureFEATURE: vmagent and vmsingle: add support for linode_sd_configs for discovering scrape targets from Linode instances. See. Thanks to @cxdy for contribution.

otherFEATURE: vmalert: extend -replay.continueWithExecutionErr to also handle the 400 Bad Request response code, since it is used for Prometheus querying API requests when request parameters are missing or incorrect. See.

otherFEATURE: vmselect and vminsert in VictoriaMetrics cluster, and vmagent: set default value of -enableMultitenancyViaHeaders to true. This change enables support of multitenancy via headers for cluster and for vmagent by default, aligning VictoriaMetrics multitenancy behavior with multitenancy in…

featureFEATURE: vmui: add an option to customize the favicon color. This makes it easier to distinguish between different installations opened in multiple browser tabs. See.

fixBUGFIX: vmagent and vmsingle: avoid suggesting the unrelated -enableTCP6 command-line flag when scraping a target over a Unix domain socket fails. See. Thanks to @lwmacct for contribution.

fixBUGFIX: vmsingle and vminsert in VictoriaMetrics cluster: skip labels with empty name at /api/v1/import. Previously such a label replaced the metric name, so a series sent with "metric":{"name":"foo","":"bar"} was stored under the name bar. Other ingestion protocols already skip such labels. See.…

fixBUGFIX: vmsingle, vmselect in VictoriaMetrics cluster and vmctl: properly parse small fractional Unix timestamps in timestamp args such as start and end in /api/v1/query_range and --vm-native-filter-time-start and --vm-native-filter-time-end in vmctl. Previously, fractional Unix timestamps with…

fixBUGFIX: vmsingle, vmstorage and vmselect in VictoriaMetrics cluster: persist the previous working set cache during graceful shutdown when it is likely to contain the active working set. This prevents saving an empty or cold current cache right after split-mode cache rotation, which could otherwise…

fixBUGFIX: vmsingle and vmselect in VictoriaMetrics cluster: change the HTTP response code for Prometheus querying API requests from 422 Unprocessable Entity to 400 Bad Request when request parameters are missing or incorrect. See.

fixBUGFIX: vmui: respect the custom query step specified via g0.step_input when opening a URL. Previously, it could be reset to the automatically calculated step and potentially cause dashboards to freeze. See.

fixBUGFIX: vmagent and vmsingle: properly assign scrape target IP address at IPv6-only networks for docker_sd_configs. See.

fixBUGFIX: vmalert: rename vmalert_rule_group_results_limit back to vmalert_group_rule_results_limit. The metric was introduced in v1.147.0 but was accidentally given the wrong name. See.

fixBUGFIX: vmalert: properly update group-level eval_delay and eval_alignment for existing groups during runtime when config reload is triggered periodically or manually via /-/reload. Previously, these settings weren't updated after config reload during runtime. See.

fixBUGFIX: vmselect in VictoriaMetrics cluster: scale the default -search.maxConcurrentRequests with the number of available CPU cores instead of capping it at 16. See. Thanks to @Dhru1Tanna for contribution.

1.149.0 Aug 5, 2026 Release notes ↗

securitySECURITY: vmsingle and vmselect in VictoriaMetrics cluster: restrict /api/v1/admin/tsdb/delete_series, /tags/delSeries endpoints to POST method only to prevent some SSRF-based data deletion attacks. See.

featureFEATURE: dashboards: add Fsync avg duration panel to the Troubleshooting section of the single-node, cluster, and vmagent dashboards. This panel surfaces degradation of IO operation for faster incident triage. See.

featureFEATURE: vmagent: add name label identifying the corresponding -remoteWrite.url target to the vm_persistentqueue_* metrics exposed by persistent queue. See. Thanks to @tIGO for contribution.

featureFEATURE: vmagent: add -remoteWrite.obfuscateLabels flag for hashing values of the specified labels before sending metrics to the corresponding -remoteWrite.url. This allows sharing metrics with external systems while keeping sensitive label values hidden. See.

featureFEATURE: vmalert: add -replay.continueWithExecutionErr flag to allow continuing to replay other rules when a rule execution fails with a 422 response code, which can happen due to an expression syntax error or a resource limit being hit. See 11313.

featureFEATURE: vmalert: add template variable $interval to expose the alerting rule group's evaluation interval. This allows generating dashboard links with a lookback window relative to the rule's interval, for example &from={{ ($activeAt.Add (parseDurationTime (printf "-%s" .Interval))).UnixMilli…

featureFEATURE: vmbackupmanager and alerts: introduce vm_backup_last_success_at metric to track the last successful backup by type. Add alerting rules NoLatestBackupWithinLastDay, NoHourlyBackupWithinLastDay, NoDailyBackupWithinLast3Days, NoWeeklyBackupWithinLast14Days and NoMonthlyBackupWithinLast62Days…

otherFEATURE: vmctl: support Prometheus native histograms migration in remote read mode. Native histograms are converted into _count, _sum and _bucket series with vmrange labels in the same way as VictoriaMetrics converts native histograms received via Prometheus remote write protocol, except that for…

otherFEATURE: vminsert in VictoriaMetrics cluster: enable slowness-based re-routing by default. Previously, -disableRerouting defaulted to true, which limited ingestion throughput to the slowest vmstorage node. Now -disableRerouting defaults to false, so vminsert automatically routes data away from the…

otherFEATURE: vmui: persist the selected auto-refresh interval in the URL. See VictoriaLogs#1310.

fixBUGFIX: MetricsQL: properly drop data points filtered out by an inner comparison operation when its result is used on the right side of another comparison. Previously, queries like foo != (bar > 100) could return unexpected results because filtered-out data points are represented internally as…

fixBUGFIX: vmagent and vmsingle: ignore HTTP proxy environment variables when scraping targets over Unix domain sockets. See. Thanks to @lwmacct for contribution.

fixBUGFIX: vmalert: fixed the display of rule state badges on the Groups page in the web UI. See.

fixBUGFIX: vmbackupmanager: previously, vmbackupmanager was crashing on startup when it failed to restore backup state from remote storage, causing a crash loop. Now it logs the error and continues running, retrying the state restore before each scheduled backup. Added…

fixBUGFIX: stream aggregation: fix incorrect sum_samples_total results when enable_windows: true is set. See. Thanks to @beyond-infra for contribution.

breakingBUGFIX: vmsingle, vmselect in VictoriaMetrics cluster and vmctl: accept scientific notation with sub-second precision (e.g. 1.784144612388E9) for timestamp args such as start and end in /api/v1/query_range and --vm-native-filter-time-start and --vm-native-filter-time-end in vmctl. Previously,…

1.148.7 Oct 20, 2026 Release notes ↗

fixBUGFIX: vmagent: prevent Kafka remote write getting stuck after TLS certificates are reloaded. Previously, when vmagent detected changed certificates and restarted the Kafka producer, pending sends to the old producer could hang forever and the remote write queue stopped draining until vmagent was…

fixBUGFIX: vmsingle, vmagent and vminsert in VictoriaMetrics cluster: properly validate time series ingested via /api/v1/import/native. See. Thanks to @meshchellomishel for contribution.

fixBUGFIX: vmsingle and vmagent: reduce memory usage during for Kubernetes service discovery, when scrape configuration has many entries that matches small subset of targets. See. Thanks to @CamberLoid for contribution.

1.148.6 Oct 12, 2026 Release notes ↗

securitySECURITY: upgrade Go builder from Go1.26.8 to Go1.26.9. See the list of issues addressed in Go1.26.9.

fixBUGFIX: all VictoriaMetrics components: correctly configure TCP keep-alive active probes. See.

fixBUGFIX: vmalert: copy alert labels before applying alert_relabel_configs from the notifier configuration file, preventing different alertmanagers from affecting each other's labels. See.

fixBUGFIX: vmauth: fixes rare data corruption on HTTP request retries. See.

fixBUGFIX: vmselect in VictoriaMetrics cluster: add missing accountID, projectID and multiTenant fields to topByAvgMemoryUsage results at /api/v1/status/top_queries. See.

fixBUGFIX: vmsingle and vmselect in VictoriaMetrics cluster: properly execute group_left(...) and group_right(..) queries when the join is then combined with another selector. See.

fixBUGFIX: vmui: prevent overriding the serverUrl, tenantId, theme, and isDarkTheme settings via query parameters. See.

fixBUGFIX: vmbackup and vmbackupmanager: add -s3SkipTaggingDirective command-line flag for S3-compatible storage that rejects the x-amz-tagging-directive and x-amz-tagging headers. See.

1.148.5 Sep 28, 2026 Release notes ↗

securitySECURITY: vmauth: restrict redirects in the OIDC Discovery HTTP client to stay within the original request host. See GHSA-xxqh-2hcc-9fp6.

securitySECURITY: upgrade base docker image (Alpine) from 3.24.1 to 3.24.2. See Alpine 3.24.2 release notes.

fixBUGFIX: vmagent: add missing X-Influxdb-Version HTTP header to influxdb API responses. See.

fixBUGFIX: vmagent: disable metrics metadata sending for MDX remote write destinations. See.

fixBUGFIX: vmagent: properly reload SSL certificate for kafka producer and consumer. See.

fixBUGFIX: vmsingle, vmselect in VictoriaMetrics cluster: prevent the process from crashing when limit_offset is called with a negative limit or offset argument. See. Thanks to @theoneLee for contribution.

fixBUGFIX: vmalert: properly reload alert_relabel_configs from the notifier configuration file. Previously, this config was applied only at startup and was not updated on config reload. See.

fixBUGFIX: vmui: fix synchronization of the custom query step with URL changes on the predefined dashboards page. See.

fixBUGFIX: vmsingle and vmselect in VictoriaMetrics cluster: slightly reduce CPU usage during concurrent queries execution. See.

1.148.4 Sep 14, 2026 Release notes ↗

securitySECURITY: upgrade Go builder from Go1.26.6 to Go1.26.7. See the list of issues addressed in Go1.26.7.

securitySECURITY: vmauth: fix authorization bypass in JWT-based routing when match_claims values are used. See GHSA-f99m-22fh-qw96.

fixBUGFIX: vmagent: now MDX discards cardinality_estimate and cardinality_churn_ratio metrics exposed by vmestimator service..

1.148.3 Aug 31, 2026 Release notes ↗

fixBUGFIX: vmsingle and vmstorage in VictoriaMetrics cluster: fixes rare metrics metadata partial search response. See.

fixBUGFIX: vmsingle and vmselect in VictoriaMetrics cluster: properly re-use memory if query aggregation returns error. See.

fixBUGFIX: vmselect in VictoriaMetrics cluster: consistently re-use memory during storage blocks unpacking on parsing storage block error. See.

fixBUGFIX: vmsingle, vminsert in VictoriaMetrics cluster and vmagent: fix process crash at /api/v1/import/native endpoint when receiving a specially crafted ~45-byte request..

1.148.2 Aug 17, 2026 Release notes ↗

securitySECURITY: upgrade Go builder from Go1.26.5 to Go1.26.6. See the list of issues addressed in Go1.26.6.

fixBUGFIX: vmagent and vmsingle: properly assign scrape target IP address at IPv6-only networks for docker_sd_configs. See.

fixBUGFIX: vmagent and vmsingle: avoid suggesting the unrelated -enableTCP6 command-line flag when scraping a target over a Unix domain socket fails.

fixBUGFIX: vmalert: rename vmalert_rule_group_results_limit back to vmalert_group_rule_results_limit. The metric was introduced in v1.147.0 but was accidentally given the wrong name. See.

1.148.1 Aug 5, 2026 Release notes ↗

fixBUGFIX: vmagent and vmsingle: ignore HTTP proxy environment variables when scraping targets over Unix domain sockets. See. Thanks to @lwmacct for contribution.

fixBUGFIX: vmalert: fixed the display of rule state badges on the Groups page in the web UI. See.

fixBUGFIX: stream aggregation: fix incorrect sum_samples_total results when enable_windows: true is set. See. Thanks to @beyond-infra for contribution.

1.148.0 Jul 20, 2026 Release notes ↗

securitySECURITY: upgrade Go builder from Go1.26.4 to Go1.26.5. See the list of issues addressed in Go1.26.5.

featureFEATURE: MetricsQL: support fill modifiers to allow missing series on either side of a binary operation to be filled with a provided default value. See.

otherFEATURE: vmagent and vmsingle: support scraping metrics over Unix domain sockets. The socket path can be configured via the unix_socket target label. See. Thanks to @vinyas-bharadwaj for contribution.

otherFEATURE: vmagent and vmsingle: Improve background discovery performance for http_sd discovery. See.

featureFEATURE: vmagent and vmsingle: allow overriding max_scrape_size on a per-target basis via the max_scrape_size label during target relabeling. See.

featureFEATURE: vmstorage and vmsingle: add -maxBackfillAge command-line flag for limiting ingestion of samples with historical timestamps, for example, when older data has been moved between storage tiers (nvme/hdd, hot/cold). See. Thanks to @AshwinRamaniPsg for contribution.

otherFEATURE: vmagent: automatically preload relabeling rules configured via -remoteWrite.relabelConfig and -remoteWrite.urlRelabelConfig in the metrics relabel debug UI. See.

fixBUGFIX: vminsert in VictoriaMetrics cluster: Now drops metadata blocks when communicating with vmstorage nodes over the legacy RPC protocol. To avoid this limitation, upgrade vmstorage to a version that supports the new RPC protocol (>= v1.137.0). See.

fixBUGFIX: vmbackup and vmbackupmanager: retry S3 requests failing with HTTP 429 status code or TooManyRequests error code. Previously such requests were not retried, so a short burst of rate limiting would fail the whole backup. See. Thanks to @gautamrizwani for contribution.

fixBUGFIX: vmselect in VictoriaMetrics cluster: properly apply limit to metrics metadata response. See.

fixBUGFIX: vmagent: fix a possible data race when processing OpenTelemetry metadata. See. Thanks to @nevgeny for contribution.

fixBUGFIX: vmagent: flush pending persistent queue data to chunk file before updating the metadata. This prevents the metadata writer offset from getting ahead of the chunk file size and avoids losing the persistent queue after an unclean shutdown. See.

fixBUGFIX: vmagent: atomically write persistent queue metainfo to prevent possible file corruption on ungraceful shutdown. See.

fixBUGFIX: vmagent: fix increased CPU and memory usage when -remoteWrite.urlRelabelConfig or -remoteWrite.streamAggr.config flags are used. The bug was introduced in and existed since v1.147.0. See.

fixBUGFIX: vmui: preserve newline formatting in alert and rule annotations on the Alerting page. See.

fixBUGFIX: vmui: hide Total metric names stats on Cardinality Explorer page when user selects a specific metric or label to focus. See for details. Thanks to @lghuy05 for the contribution.

fixBUGFIX: vmui: keep only one header navigation dropdown (Explore, Tools) open at a time. Previously, hovering across two dropdowns could briefly leave both open due to the close delay. See. Thanks to @antedotee for contribution.

fixBUGFIX: vmauth: return 408 Request Timeout instead of 400 Bad Request when the request body isn't received within -maxQueueDuration. This prevents vmagent from incorrectly downgrading the remote write protocol and dropping data when vmauth is used as a proxy for a remote write endpoint. See.

1.147.0 Jul 6, 2026 Release notes ↗

securitySECURITY: upgrade base docker image (Alpine) from 3.23.4 to 3.24.1. See Alpine 3.24.1 release notes.

featureFEATURE: vmauth: add default_vm_access_claim field into jwt section of auth config. It could be used at JWT claim placeholders, if JWT token doesn't have vm_access claim. See.

otherFEATURE: vmagent: reduces CPU usage by 10% at sharding among remote storages. See. Thanks to @bennf for contribution.

featureFEATURE: vmagent, vminsert in VictoriaMetrics cluster and vmsingle: introduce 64KiB size limit for metric metadata fields - Unit, Help and MetricFamilyName. See.

otherFEATURE: vmagent and vmsingle: reduce CPU usage for storing scrape target labels. See.

featureFEATURE: vmagent: add support for Monitoring Data eXchange (MDX): the ability to route only metrics from VictoriaMetrics services to a specific -remoteWrite.url. MDX is useful for building monitoring-of-monitoring where one remote storage should receive the full metric stream and another should…

otherFEATURE: vmsingle and vmstorage in VictoriaMetrics cluster: expose vm_data_size_bytes{type="storage/metaindex"} and vm_data_size_bytes{type="indexdb/metaindex"} metrics for tracking memory occupied by metaindex data. See. Thanks to @SamarthBagga for contribution.

featureFEATURE: vmsingle and vmselect in VictoriaMetrics cluster: add optimize_repeated_binary_op_subexprs=1 query arg to /api/v1/query_range for executing binary operator sides sequentially when they share the same optimized aggregate rollup result expression. This allows the second side to reuse rollup…

featureFEATURE: vmsingle: Add the support of vmselect RPC to vmsingle so that single node can be queried by a vmselect from a vmcluster deployment. See, and the documentation.

featureFEATURE: alerts: add InvalidAuthTokenRequestErrors alerting rule to vmauth alerts. The new rule notifies when vmauth receives requests with invalid or missing auth tokens, which may indicate a client misconfiguration, expired token use, or brute-force attack. See.

featureFEATURE: alerts: add AlertingRuleResultsApproachingLimit and RecordingRuleResultsApproachingLimit alerting rules to vmalert alerts. These alerts notify when a rule's last evaluation samples exceed 90% of the configured group results limit. See. Thanks to @vinyas-bharadwaj for the contribution.

otherFEATURE: vmauth: prevent possible password brute-force attacks with an artificial 2-3 second delay as recommended by OWASP. See.

featureFEATURE: vmauth: allow log requests with missing or invalid auth tokens to access log. This is useful for identifying remote_addr IPs performing brute-force attacks. See.

otherFEATURE: vmauth: fall through to unauthorized_user when a JWT token has no vm_access claim and no default_vm_access_claim is configured. Previously, vmauth returned 401 Unauthorized immediately in this case, which prevented unauthorized_user from handling such requests. See.

otherFEATURE: MetricsQL: improve the selection algorithm of buckets_limit to remove consecutive empty buckets at the beginning and end to obtain more accurate min and max values. See.

otherFEATURE: vmalert: expose vmalert_group_rule_results_limit metric to indicate the number of alerts or recording results that a single rule within the group can produce. See. Thanks to @vinyas-bharadwaj for the contribution.

fixBUGFIX: all VictoriaMetrics components: cancel in-flight HTTP requests shortly before -http.maxGracefulShutdownDuration elapses during graceful shutdown, so they can drain and the shutdown completes cleanly within that window instead of timing out and exiting via logger.Fatalf -> os.Exit. This…

fixBUGFIX: vminsert in VictoriaMetrics cluster and vmsingle: properly check values range for the limits configured with flags -maxLabelsPerTimeseries, -maxLabelNameLen and -maxLabelValueLen. It must be in range 1..65535. See.

fixBUGFIX: vminsert in VictoriaMetrics cluster: fixes unexpected rare rerouting. See.

fixBUGFIX: vmselect in VictoriaMetrics cluster: propagate cache reset operation to selectNode when /internal/resetRollupResultCache is called. Previously, the propagation only happened when the delete_series API was called. See.

fixBUGFIX: stream aggregation: fix possible unexpected increases in rate_avg and rate_sum if an out-of-order sample is ingested after the previous flush. See.

fixBUGFIX: vmctl: properly URL-encode -vm-extra-label values when building import requests, so special characters such as & don't get split into broken query parameters. See. Thanks to @immanuwell for contribution.

fixBUGFIX: enterprise vmagent: ignore enable.auto.offset.store option in kafka.consumer.topic.options, since vmagent manages offset storage internally. Previously, setting this option could cause vmagent to stop committing Kafka messages. See.