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CVE PROGRAM SOURCE RECORD5.2 Medium

CVE-2026-0895

Insecure Deserialization in extension "Mailqueue" (mailqueue)

Description

The extension extends TYPO3’ FileSpool component, which was vulnerable to Insecure Deserialization prior to TYPO3-CORE-SA-2026-004 https://typo3.org/security/advisory/typo3-core-sa-2026-004 . Since the related fix is overwritten by the extension, using the extension with a patched TYPO3 core version still allows for Insecure Deserialization, because the affected vulnerable code was extracted from TYPO3 core to the extension. More information about this vulnerability can be found in the related TYPO3 Core Security Advisory TYPO3-CORE-SA-2026-004 https://typo3.org/security/advisory/typo3-core-sa-2026-004 .

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

TYPO3 Extension "Mailqueue"

Default version status: unaffected

  • 0 to < 0.4.3affected
  • 0.5.0 to < 0.5.1affected

References