CVE-2026-91203

cockpit-files: A flaw was found in cockpit-files

CVE-2026-91203 is fixed in cockpit-files on 1 platform, first by RHSA-2026:95570, released September 18, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
6.1
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0016
4th percentile

A flaw was found in cockpit-files. This vulnerability allows a local attacker to exploit a timing issue, known as a symlink race condition, during privileged file operations such as changing file ownership or permissions. By manipulating directory entries and winning this race, the attacker can redirect these operations to unintended files. This could lead to unauthorized changes in file ownership and permissions on arbitrary files, potentially compromising system integrity and availability by altering system or application states or rendering services unusable.

Where it's fixed

ProductFixed inFixReleased
Linux
cockpit-files · Debian 14 45-1 DEBIAN-CVE-2026-91203 Sep 29, 2026
cockpit-files · RHEL 10 36.1-1.el10_2 RHSA-2026:95570 Sep 18, 2026
cockpit-files · almalinux 10 36.1-1.el10_2 ALSA-2026:95570 Nov 7, 2026
cockpit-files · ol 10 0:36.1-1.el10_2 ELSA-2026-95570 Nov 7, 2026
cockpit-files · rocky 10 0:36.1-1.el10_2 RLSA-2026:95570 Nov 7, 2026

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