CVE-2026-0859
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.
Affected Packages
https://github.com/TYPO3/typo3.git (GITHUB):
Affected version(s) >=v14.0.0 <v14.0.2Fix Suggestion:
Update to version v14.0.2https://github.com/TYPO3/typo3.git (GITHUB):
Affected version(s) >=v12.0.0 <v12.4.41Fix Suggestion:
Update to version v12.4.41https://github.com/TYPO3/typo3.git (GITHUB):
Affected version(s) >=v10.0.0 <v10.4.55Fix Suggestion:
Update to version v10.4.55https://github.com/TYPO3/typo3.git (GITHUB):
Affected version(s) >=v13.0.0 <v13.4.23Fix Suggestion:
Update to version v13.4.23https://github.com/TYPO3/typo3.git (GITHUB):
Affected version(s) >=v11.0.0 <v11.5.49Fix Suggestion:
Update to version v11.5.49Related Resources (7)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.2
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
3.8
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Deserialization of Untrusted Data
EPSS
Base Score:
0.03
