Symlink Following Affecting cockpit-files package, versions <45-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.13% (3rd percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-COCKPITFILES-19946515
  • published19 Sept 2026
  • disclosed18 Sept 2026

Introduced: 18 Sep 2026

CVE-2026-91202  (opens in a new tab)
CWE-61  (opens in a new tab)

How to fix?

Upgrade Debian:unstable cockpit-files to version 45-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream cockpit-files package and not the cockpit-files package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

A flaw was found in cockpit-files. A low-privileged local user can exploit this vulnerability by crafting a directory containing a symbolic link (symlink) and then using the privileged "Paste as owner" function. This allows for arbitrary file ownership changes outside the intended pasted directory, leading to a compromise of data integrity. In some cases, this could also lead to reduced confidentiality if the new ownership grants unauthorized read access. Exploitation requires user interaction to select a non-original owner during the paste operation.

CVSS Base Scores

version 3.1