- TYPO3 CMS Allows Insecure Deserialization via Mailer File Spool CVE-2026-0859

- TYPO3 CMS Allows Insecure Deserialization via Mailer File Spool CVE-2026-0859

CVE ID : CVE-2026-0859 Published : Jan. 13, 2026, 12:15 p.m. | 27 minutes ago 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. Severity: 5.2 | MEDIUM Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE Details

Severity
MEDIUM
Published
Jan. 13, 2026
Affected Product: PHP
Attack Vector: local
Impact: code execution

Source: Telegram CVE Monitor