GitHub Advisoryadvisory · Packagist
GHSA-2pm6-9fhx-vvg3 The mailqueue TYPO3 extension has Insecure Deserialization in `TransportFailure` class
MEDIUM
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
- https://github.com/CPS-IT/mailqueue/security/advisories/GHSA-2pm6-9fhx-vvg3 web
- https://nvd.nist.gov/vuln/detail/CVE-2026-1323 advisory
- https://github.com/CPS-IT/mailqueue/commit/0f7a1376bbbd8c7658030d02e51c10a85b1dfdf7 web
- https://github.com/CPS-IT/mailqueue/commit/600c7dba99f8eea5f2505b848ee3dd4713440741 web
- https://github.com/CPS-IT/mailqueue package
- https://typo3.org/security/advisory/typo3-ext-sa-2026-005 web