Vulnerability Description
In PHP versions 8.2.* before 8.2.32, 8.3.* before 8.3.32, 8.4.* before 8.4.23, 8.5.* before 8.5.8, the AES-WRAP-PAD algorithm implementation in OpenSSL extension contains a buffer allocation flaw. The output buffer for the AES key-wrap-with-padding operation is sized from the plaintext length without accounting for RFC 5649 expansion. This may cause OpenSSL to write beyond allocated memory, corrupting heap metadata and triggering application abort.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Php | Php | >= 8.2.0, < 8.2.32 |
| Debian | Debian Linux | 12.0 |
Related Weaknesses (CWE)
References
- https://github.com/php/php-src/security/advisories/GHSA-7jrw-539f-x6vrVendor Advisory
- https://lists.debian.org/debian-lts-announce/2026/07/msg00010.htmlMailing ListThird Party Advisory
FAQ
What is CVE-2026-14355?
CVE-2026-14355 is a vulnerability with a CVSS score of 5.6 (MEDIUM). In PHP versions 8.2.* before 8.2.32, 8.3.* before 8.3.32, 8.4.* before 8.4.23, 8.5.* before 8.5.8, the AES-WRAP-PAD algorithm implementation in OpenSSL extension contains a buffer allocation flaw. The...
How severe is CVE-2026-14355?
CVE-2026-14355 has been rated MEDIUM with a CVSS base score of 5.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-14355?
Check the references section above for vendor advisories and patch information. Affected products include: Php Php, Debian Debian Linux.