CVE-2026-91203

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 17/100
Published: 2026-09-18 Modified: 2026-11-11 First seen: 2026-11-06 Status: active

Attack Surface

Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: High
PR: Low
UI: Required
S: Unchanged
C: None
I: High
A: High

Description

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.

References & Advisories (4)

https://access.redhat.com/errata/RHSA-2026:95570
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:98566
vendor-advisory x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2465632
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

17 / 100

CVSS Score

6.0 / 10.0 v3.1
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:H

EPSS — Exploitation Probability

0.16%
Raw Score 0.001570
Percentile 4.9%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00157
2026-11-12
0.00157
2026-11-10
0.00155
2026-11-09
0.00155
2026-11-08
0.00155
2026-11-07
0.00155
2026-11-06
0.00130
2026-11-05
0.00111

Intelligence Sources

mitre ref →
nvd ref →