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CVE-2026-38991

CVE-2026-38991

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

Cockpit 2.13.5 and earlier is affected by a misconfiguration within the Bucket component _isFileTypeAllowed function where a specially crafted filename bypasses an extension filter. This allows an authenticated attacker to rename arbitrary files with the .php file extension enabling arbitrary code to be executed on the underlying server.

CVSS 8.8 · High · EPSS 0.4% · Fix available

Published
Updated

Stack: php

Affected products and versions

  • n/a

    Versions
    • n/a: Affected

    No fix published

  • cockpit-hq/cockpit Packagist

    Versions
    • 2.0.0
    • 2.0.1
    • 2.0.2
    • 2.1.0
    • 2.1.1
    • 2.1.2
    • 2.10.0
    • 2.10.1
    • 2.10.2
    • 2.10.3
    • 2.11.0
    • 2.11.1
    • 2.11.2
    • 2.11.3
    • 2.11.4
    • 2.12.0
    • 2.12.1
    • 2.13.0
    • 2.13.1
    • 2.13.2
    • 2.13.3
    • 2.13.4
    • 2.13.5
    • 2.2.0
    • 2.2.1
    • 2.2.2
    • 2.3.0
    • 2.3.1
    • 2.3.2
    • 2.3.3
    • 2.3.4
    • 2.3.5
    • 2.3.6
    • 2.3.7
    • 2.3.8
    • 2.3.9
    • 2.4.0
    • 2.4.1
    • 2.5.0
    • 2.5.1
    • 2.5.2
    • 2.6.0
    • 2.6.1
    • 2.6.2
    • 2.6.3
    • 2.7.0
    • 2.7.1
    • 2.7.2
    • 2.8.0
    • 2.8.1
    • 2.8.2
    • 2.8.3
    • 2.8.4
    • 2.8.5
    • 2.8.6
    • 2.9.0
    • 2.9.1
    • 2.9.2
    • 2.9.3
    • 2.9.4
    Affected ranges
    • ECOSYSTEM: < 2.14.0

    Update to 2.14.0

Original sources

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