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CVE-2026-0859

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

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 5.2 · Medium · EPSS 0.2% · Fix available

Published
Updated

Stack: php

Affected products and versions

  • typo3 cms

    Versions
    • ≥ 10.0.0, < 10.4.55: Affected (semver)
    • ≥ 11.0.0, < 11.5.49: Affected (semver)
    • ≥ 12.0.0, < 12.4.41: Affected (semver)
    • ≥ 13.0.0, < 13.4.23: Affected (semver)
    • ≥ 14.0.0, < 14.0.2: Affected (semver)

    Update to 10.4.55; Update to 11.5.49; Update to 12.4.41; Update to 13.4.23; Update to 14.0.2

  • typo3/cms-core Packagist

    Versions
    • v14.0.0
    • v14.0.1
    Affected ranges
    • ECOSYSTEM: ≥ 14.0.0, < 14.0.2

    Update to 14.0.2

  • typo3/cms-core Packagist

    Versions
    • v13.0.0
    • v13.0.1
    • v13.1.0
    • v13.1.1
    • v13.2.0
    • v13.2.1
    • v13.3.0
    • v13.3.1
    • v13.4.0
    • v13.4.1
    • v13.4.10
    • v13.4.11
    • v13.4.12
    • v13.4.13
    • v13.4.14
    • v13.4.15
    • v13.4.16
    • v13.4.17
    • v13.4.18
    • v13.4.19
    • v13.4.2
    • v13.4.20
    • v13.4.21
    • v13.4.22
    • v13.4.3
    • v13.4.4
    • v13.4.5
    • v13.4.6
    • v13.4.7
    • v13.4.8
    • v13.4.9
    Affected ranges
    • ECOSYSTEM: ≥ 13.0.0, < 13.4.23

    Update to 13.4.23

  • typo3/cms-core Packagist

    Versions
    • v12.0.0
    • v12.1.0
    • v12.1.1
    • v12.1.2
    • v12.1.3
    • v12.2.0
    • v12.3.0
    • v12.4.0
    • v12.4.1
    • v12.4.10
    • v12.4.11
    • v12.4.12
    • v12.4.13
    • v12.4.14
    • v12.4.15
    • v12.4.16
    • v12.4.17
    • v12.4.18
    • v12.4.19
    • v12.4.2
    • v12.4.20
    • v12.4.21
    • v12.4.22
    • v12.4.23
    • v12.4.24
    • v12.4.25
    • v12.4.26
    • v12.4.27
    • v12.4.28
    • v12.4.29
    • v12.4.3
    • v12.4.30
    • v12.4.31
    • v12.4.32
    • v12.4.33
    • v12.4.34
    • v12.4.35
    • v12.4.36
    • v12.4.37
    • v12.4.38
    • v12.4.39
    • v12.4.4
    • v12.4.40
    • v12.4.5
    • v12.4.6
    • v12.4.7
    • v12.4.8
    • v12.4.9
    Affected ranges
    • ECOSYSTEM: ≥ 12.0.0, < 12.4.41

    Update to 12.4.41

  • typo3/cms-core Packagist

    Versions
    • v11.0.0
    • v11.1.0
    • v11.1.1
    • v11.2.0
    • v11.3.0
    • v11.3.1
    • v11.3.2
    • v11.3.3
    • v11.4.0
    • v11.5.0
    • v11.5.1
    • v11.5.10
    • v11.5.11
    • v11.5.12
    • v11.5.13
    • v11.5.14
    • v11.5.15
    • v11.5.16
    • v11.5.17
    • v11.5.18
    • v11.5.19
    • v11.5.2
    • v11.5.20
    • v11.5.21
    • v11.5.22
    • v11.5.23
    • v11.5.24
    • v11.5.25
    • v11.5.26
    • v11.5.27
    • v11.5.28
    • v11.5.29
    • v11.5.3
    • v11.5.30
    • v11.5.31
    • v11.5.32
    • v11.5.33
    • v11.5.34
    • v11.5.35
    • v11.5.36
    • v11.5.37
    • v11.5.38
    • v11.5.39
    • v11.5.4
    • v11.5.40
    • v11.5.41
    • v11.5.5
    • v11.5.6
    • v11.5.7
    • v11.5.8
    • v11.5.9
    Affected ranges
    • ECOSYSTEM: ≥ 11.0.0, < 11.5.49

    Update to 11.5.49

  • typo3/cms-core Packagist

    Versions
    • v10.0.0
    • v10.1.0
    • v10.2.0
    • v10.2.1
    • v10.2.2
    • v10.3.0
    • v10.4.0
    • v10.4.1
    • v10.4.10
    • v10.4.11
    • v10.4.12
    • v10.4.13
    • v10.4.14
    • v10.4.15
    • v10.4.16
    • v10.4.17
    • v10.4.18
    • v10.4.19
    • v10.4.2
    • v10.4.20
    • v10.4.21
    • v10.4.22
    • v10.4.23
    • v10.4.24
    • v10.4.25
    • v10.4.26
    • v10.4.27
    • v10.4.28
    • v10.4.29
    • v10.4.3
    • v10.4.30
    • v10.4.31
    • v10.4.32
    • v10.4.33
    • v10.4.34
    • v10.4.36
    • v10.4.37
    • v10.4.4
    • v10.4.5
    • v10.4.6
    • v10.4.7
    • v10.4.8
    • v10.4.9
    Affected ranges
    • ECOSYSTEM: ≥ 10.0.0, < 10.4.55

    Update to 10.4.55

Original sources

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