CVE-2026-0859
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.
| Software | From | Fixed in |
|---|---|---|
| typo3 / typo3 | 10.0.0 | 10.4.55 |
| typo3 / typo3 | 11.0.0 | 11.5.49 |
| typo3 / typo3 | 12.0.0 | 12.4.41 |
| typo3 / typo3 | 13.0.0 | 13.4.23 |
| typo3 / typo3 | 14.0.0 | 14.0.2 |
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