CVE-2026-91205CWE-363

CVE-2026-91205

Medium · published September 19, 2026

CVSS v3.1
6.0
EPSS
0%
Percentile
1.2
In the wild
Unconfirmed
What it is

A flaw was found in cockpit-files. A local unprivileged attacker can exploit a race condition during directory creation with owner assignment. By controlling a writable parent directory, the attacker can replace a newly created directory with a symbolic link (symlink) before the ownership change operation (chown) is applied. This allows the attacker to redirect the ownership change to an arbitrary file, potentially leading to information disclosure or unauthorized modification of sensitive files.

The record
Technical detail
CVSS v3.1
6.0 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00110 · 1.2th percentile
Weakness
CWE-363 · Race Condition Enabling Link Following
Published
2026-09-19T00:17Z
References (3)
EPSS history
Timeline
  • 20 SEP 03:24Z
    EPSS moved — → 0%
    epss
  • 18 SEP 19:14Z
    Cockpit-files: cockpit-files: local attacker can hijack file ownership via symlink race
    cvelistv5