🛡️ CVE-2026-14355 on Ubuntu — php5

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Distribution advisory

This page covers CVE-2026-14355 as tracked by Ubuntu, for the package php5. The fix is available in version 8.1.2-1ubuntu2.25; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability low.

Affected software

UBUNTU-CVE-2026-14355 is recorded against 8 packages.

  • php5
  • php7.0
  • php7.2
  • php7.4
  • php8.1 (fixed in 8.1.2-1ubuntu2.25)
  • php8.3 (fixed in 8.3.6-0ubuntu0.24.04.10)
  • php8.4
  • php8.5 (fixed in 8.5.4-0ubuntu1.2)

Timeline and source

Published on 3 July 2026 and last revised on 21 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Report)
www.cve.org (Report)
github.com (Report)
ubuntu.com (Advisory)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-07-03
Updated 2026-08-11
Modified 2026-07-21
Fix URL N/A

Affected Packages

Software From version Fixed in
php5 — —
php7.0 — —
php7.2 — —
php7.4 — —
php8.1 — 8.1.2-1ubuntu2.25
php8.3 — 8.3.6-0ubuntu0.24.04.10
php8.4 — —
php8.5 — 8.5.4-0ubuntu1.2

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