The extension fails to properly define allowed classes used when deserializing transport failure metadata. An attacker may exploit this to execute untrusted serialized code. Note that an active exploit requires write access to the directory configured at $GLOBALS['TYPO3_CONF_VARS']['MAIL']['transport_spool_filepath'].

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History

Wed, 18 Mar 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Typo3
Typo3 extension "mailqueue"
Vendors & Products Typo3
Typo3 extension "mailqueue"

Tue, 17 Mar 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 17 Mar 2026 09:00:00 +0000

Type Values Removed Values Added
Description The extension fails to properly define allowed classes used when deserializing transport failure metadata. An attacker may exploit this to execute untrusted serialized code. Note that an active exploit requires write access to the directory configured at $GLOBALS['TYPO3_CONF_VARS']['MAIL']['transport_spool_filepath'].
Title Insecure Deserialization in extension "Mailqueue" (mailqueue)
Weaknesses CWE-502
References
Metrics cvssV4_0

{'score': 5.2, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: TYPO3

Published:

Updated: 2026-03-17T13:18:18.900Z

Reserved: 2026-01-22T06:39:32.852Z

Link: CVE-2026-1323

cve-icon Vulnrichment

Updated: 2026-03-17T13:18:13.243Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-17T09:16:13.507

Modified: 2026-03-17T14:20:01.670

Link: CVE-2026-1323

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-18T12:13:34Z

Weaknesses