Description
TYPO3's mail‑file spool deserialization flaw lets local users with write access to the spool directory craft a malicious file that is deserialized during the mailer:spool:send command, enabling arbitrary PHP code execution on the web server. This issue affects TYPO3 CMS versions 10.0.0-10.4.54, 11.0.0-11.5.48, 12.0.0-12.4.40, 13.0.0-13.4.22 and 14.0.0-14.0.1.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| TYPO3 | TYPO3 CMS | 10.0.0 – < 10.4.55, 11.0.0 – < 11.5.49, 12.0.0 – < 12.4.41, 13.0.0 – < 13.4.23, 14.0.0 – < 14.0.2 | 10.4.55 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Packagist | typo3/cms-core | >= 14.0.0, < 14.0.2 | 14.0.2 | GHSA-7vp9-x248-9vr9 |
| Packagist | typo3/cms-core | >= 13.0.0, < 13.4.23 | 13.4.23 | GHSA-7vp9-x248-9vr9 |
| Packagist | typo3/cms-core | >= 12.0.0, < 12.4.41 | 12.4.41 | GHSA-7vp9-x248-9vr9 |
| Packagist | typo3/cms-core | >= 11.0.0, < 11.5.49 | 11.5.49 | GHSA-7vp9-x248-9vr9 |
| Packagist | typo3/cms-core | >= 10.0.0, < 10.4.55 | 10.4.55 | GHSA-7vp9-x248-9vr9 |
Advisories 2
- NCSC-2026-0018 Kwetsbaarheden verholpen in TYPO3 CMS NCSC-NL (Netherlands) · Jan 16, 2026
- WID-SEC-2026-0095 TYPO3 Core: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jan 13, 2026
References
- https://typo3.org/security/advisory/typo3-core-sa-2026-004 vendor-advisory
- Git commit of main branch patch
- Git commit of 13.4 branch patch
- Git commit of 12.4 branch patch