GHSA-2pm6-9fhx-vvg3
The mailqueue TYPO3 extension has Insecure Deserialization in `TransportFailure` class
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Packagist | cpsit/typo3-mailqueue | < 0.4.5 | 0.4.5 |
| Packagist | cpsit/typo3-mailqueue | >= 0.5.0, < 0.5.2 | 0.5.2 |
Details
As written in the advisory (Markdown source, shown as plain text).
## 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']`.
References
External links from the advisory. They lead to third-party sites.
- https://github.com/CPS-IT/mailqueue/security/advisories/GHSA-2pm6-9fhx-vvg3
- https://nvd.nist.gov/vuln/detail/CVE-2026-1323
- https://github.com/CPS-IT/mailqueue/commit/0f7a1376bbbd8c7658030d02e51c10a85b1dfdf7
- https://github.com/CPS-IT/mailqueue/commit/600c7dba99f8eea5f2505b848ee3dd4713440741
- https://github.com/CPS-IT/mailqueue
- https://typo3.org/security/advisory/typo3-ext-sa-2026-005