CVE-2026-14355

MEDIUM CVSS 3.1: 5.3 EPSS 0.28%
Updated Jul 08, 2026
PHP
Parameter Value
CVSS 5.3 (MEDIUM)
Affected Versions 8.2.0 — 8.5.8
Fixed In 8.2.32
Type CWE-122 (Heap-based Buffer Overflow)
Vendor PHP
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
Low
Partial disruption

CVSS Vector v3.1

Vulnerable Products 5

Configuration From (including) Up to (excluding)
Php Php
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
8.2.0 8.2.32
Php Php
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
8.3.0 8.3.32
Php Php
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
8.4.0 8.4.23
Php Php
cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
8.5.0 8.5.8
Debian Debian_Linux
cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*