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CVE-2026-0859
Good to know:
Date: January 13, 2026
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.
Severity Score
Related Resources (8)
Severity Score
Weakness Type (CWE)
Deserialization of Untrusted Data
CWE-502Top Fix
Upgrade Version
Upgrade to version https://github.com/TYPO3/typo3.git - v10.4.55;https://github.com/TYPO3/typo3.git - v11.5.49;https://github.com/TYPO3/typo3.git - v12.4.41;https://github.com/TYPO3/typo3.git - v13.4.23;https://github.com/TYPO3/typo3.git - v14.0.2
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | LOCAL |
| Attack Complexity (AC): | LOW |
| Privileges Required (PR): | LOW |
| User Interaction (UI): | NONE |
| Scope (S): | CHANGED |
| Confidentiality (C): | HIGH |
| Integrity (I): | LOW |
| Availability (A): | HIGH |