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CVE-2026-0859

HIGH

7.8

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.

CVE Details

CVSS v3.1 Score7.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published1/13/2026

Last Modified1/14/2026

Sourcenvd

Honeypot Sightings0

Affected Products

typo3:typo3

Weaknesses (CWE)

CWE-502

References

https://github.com/TYPO3/typo3/commit/3225d705080a1bde57a66689621c947da5a4782f(f4fb688c-4412-4426-b4b8-421ecf27b14a)

https://github.com/TYPO3/typo3/commit/722bf71c118b0a8e4f2c2494854437d846799a13(f4fb688c-4412-4426-b4b8-421ecf27b14a)

https://github.com/TYPO3/typo3/commit/e0f0ceee480c203fbb60b87454f5f193e541d27f(f4fb688c-4412-4426-b4b8-421ecf27b14a)

https://typo3.org/security/advisory/typo3-core-sa-2026-004(f4fb688c-4412-4426-b4b8-421ecf27b14a)

IOC Correlations

No correlations recorded

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