CVE-2026-91203

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

18/09/2026

Last modified:

22/09/2026

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.

Impact

Vector 3.x

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

Base Score: 6.00 MEDIUM
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): High

Base Score 3.x

6.00

Severity 3.x

MEDIUM

CVE-2026-91203

Description

Impact

References to Advisories, Solutions, and Tools