high8.8
CVE-2026-1323
The mailqueue TYPO3 extension has Insecure Deserialization in `TransportFailure` class
Impact
## 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']`.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| composer | cpsit/typo3-mailqueue | < 0.4.5 | 0.4.5 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Cps-It | Mailqueue | before 0.4.5 from 0.5.0 before 0.5.2 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://typo3.org/security/advisory/typo3-ext-sa-2026-005
- https://github.com/advisories/GHSA-2pm6-9fhx-vvg3
- 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