Is PHP 8.4.22 affected?
Jun 4, 2026 · Release notes ↗
18 known vulnerabilities affect 8.4.22 (highest CVSS 9.2).
5 newer releases in its track, up to 8.4.27. What changed up to 8.4.27
A newer release line is out: 8.5.12.
Vulnerabilities affecting 8.4.22
- 9.2
- 9.2
- 7.5
- 6.9 CVE-2026-17545 PHP on Windows: Reserved Device Names Are Not Rejected Before File/Stream I/O which can cause DoS fixed in 8.4.26
- 6.5 CVE-2026-91768 IPv6 ACL bypass in FastCGI listen.allowed_clients due to partial address comparison (memcmp 12 bytes) fixed in 8.4.26
- 6.5 CVE-2026-91767 Heap-buffer-overflow in php_openssl_matches_wildcard_name on crafted server cert wildcard CN fixed in 8.4.26
- 6.5
- 5.9 CVE-2026-92842 OOB read / info leak in convert.* stream filters when line-break-chars contains NUL fixed in 8.4.26
- 5.9
- 5.5
- 5.3 CVE-2026-93682 Out-of-bounds read in the HTTP stream wrapper when following a redirect with an empty Location header fixed in 8.4.26
- 4.8 CVE-2026-14355 ext/openssl: Memory corruption (zend_mm_heap corrupted) in openssl_encrypt with AES-WRAP-PAD fixed in 8.4.23
- 4.3
- 4.0
- 3.7
- 3.1
- high
- high
Newer releases
| 8.4.27 | Oct 21, 2026 | 8.4.22 → 8.4.27 |
| 8.4.26 | Sep 24, 2026 | 8.4.22 → 8.4.26 |
| 8.4.25 | Aug 28, 2026 | 8.4.22 → 8.4.25 |
| 8.4.24 | Jul 30, 2026 | 8.4.22 → 8.4.24 |
| 8.4.23 | Jul 3, 2026 | 8.4.22 → 8.4.23 |