Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-91205

CVE-2026-91205MEDIUM

Red Hat Red Hat Enterprise Linux 9 — Cockpit-files: cockpit-files: local attacker can hijack file ownership via symlink race

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   H   L   R  U  H  H  N    6.0   .0010    0.8     —

AFFECTED
  Product                      Versions     Fixed
  Red Hat Enterprise Linux 9   unspecified  0:36.1-1.el9_8
  Red Hat Enterprise Linux 10  unspecified  —

TIMELINE
  Sep 14  Reserved by redhat
  Sep 18  Published (CNA: redhat)
  Oct 18  PATCH SHIPPED — CVE-2026-91205 (Red Hat Enterprise Linux 9). Fixed in Red Hat Enterprise Linux 9 0:36.1-1.el9_8.

CWE-363 · CNA: redhat · CVSS v3.1 · 3 references · NVD status: Awaiting Analysis

Description

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
September 14, 2026	Reserved	Reserved by redhat
September 18, 2026	Published	Published (CNA: redhat)
October 18, 2026	PATCH SHIPPED	PATCH SHIPPED — CVE-2026-91205 (Red Hat Enterprise Linux 9). Fixed in Red Hat Enterprise Linux 9 0:36.1-1.el9_8.

Affected

Affected products and packages — 2 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Red Hat	Red Hat Enterprise Linux 9	—	—	0:36.1-1.el9_8
Red Hat	Red Hat Enterprise Linux 10	—	—	—

Weaknesses

CWE-363

References (3)

https://access.redhat.com/errata/RHSA-2026:84595 [vendor-advisory, x_refsource_REDHAT]
https://access.redhat.com/security/cve/CVE-2026-91205 [vdb-entry, x_refsource_REDHAT]
https://bugzilla.redhat.com/show_bug.cgi?id=2466442 [issue-tracking, x_refsource_REDHAT]

Authoritative record: CVE-2026-91205 at cve.org

Vendors: red hat

Weaknesses: CWE-363

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-91205 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.