CVE-2026-14355

Medium

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.

SeverityMedium
CVSS5.6
Exploit probability—
ProductPhp
PublishedJul 3, 2026
First seenJul 3, 2026
Weakness typeCWE-122CWE-122

How to fix

Update
  • php php8.2.32, 8.3.32, 8.4.23, 8.5.8 or later

Affected products

ProductAffected versionsFixed in
php php8.2.0 ≤ v < 8.2.32, 8.3.0 ≤ v < 8.3.32, 8.4.0 ≤ v < 8.4.23, 8.5.0 ≤ v < 8.5.88.2.32, 8.3.32, 8.4.23, 8.5.8
debian debian_linux12.0—

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CVE-2026-14355 · Php · Dark Radar