GitHub Advisoryadvisory · Packagist

GHSA-2pm6-9fhx-vvg3 The mailqueue TYPO3 extension has Insecure Deserialization in `TransportFailure` class

MEDIUM Published 2026-03-18 Modified 2026-04-27 Official page ↗
Aliases
CVE-2026-1323
Ecosystem
Packagist
Packages
cpsit/typo3-mailqueue
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-502
Reviewed
2026-03-18

Affected packages

• Packagist cpsit/typo3-mailqueue: < 0.4.5 → fixed in 0.4.5 • Packagist cpsit/typo3-mailqueue: >= 0.5.0, < 0.5.2 → fixed in 0.5.2

Description

Description The extension fails to properly define allowed classes used when deserializing transport failure metadata. An attacker may exploit this to execute untrusted serialized code. Note that an active exploit requires write access to the directory configured at `$GLOBALS['TYPO3_CONF_VARS']['MAIL']['transport_spool_filepath']`.

Related

Alias · CVE (1)

  • CVE-2026-1323 The extension fails to properly define allowed classes used when deserializing transport failure metadata. vulnerability

Weakness · CWE (1)

  • CWE-502 Deserialization of Untrusted Data weakness

References