CVE-2026-91205Cockpit-files: cockpit-files: local attacker can hijack file ownership via symlink race
Updated under an hour ago ()
Does this affect you?
It affects Red Hat Enterprise Linux 9. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.0 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N
- Weakness (CWE)
- CWE-363
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Red Hat Red Hat Enterprise Linux 9 redhat:enterprise_linux | from 0:36.1-1.el9_8 not affected | CNA record |
References
- https://access.redhat.com/errata/RHSA-2026:84595vendor-advisory, x-refsource-redhat
- https://access.redhat.com/security/cve/CVE-2026-91205vdb-entry, x-refsource-redhat
- https://bugzilla.redhat.com/show_bug.cgi?id=2466442issue-tracking, x-refsource-redhat
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.