CVE-2026-91203 PUBLISHED

Cockpit-files: cockpit-files: arbitrary file ownership and permission modification via symlink race condition

Assigner: redhat
Reserved: 14.09.2026 Published: 18.09.2026 Updated: 18.09.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:H
CVSS Score: 6

Product Status

Vendor Red Hat
Product Red Hat Enterprise Linux 10
Versions Default: affected
Vendor Red Hat
Product Red Hat Enterprise Linux 9
Versions Default: affected

Credits

  • This issue was discovered by Found by AISLE in partnership with Red Hat.

References

Problem Types

  • Race Condition Enabling Link Following CWE