Race Condition Affecting cockpit-files package, versions <0:43.1-1.el10_3


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.16% (5th percentile)

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  • Snyk IDSNYK-RHEL10-COCKPITFILES-22424668
  • published12 Nov 2026
  • disclosed18 Sept 2026

Introduced: 18 Sep 2026

CVE-2026-91203  (opens in a new tab)
CWE-363  (opens in a new tab)

How to fix?

Upgrade RHEL:10 cockpit-files to version 0:43.1-1.el10_3 or higher.
This issue was patched in RHSA-2026:98566.

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 RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1