Vulnerability in Red Hat Enterprise Linux 10
CVE-2026-91205
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.0 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.001 (1.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 1st percentile — 1.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000
Affected products
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-91205 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
- access.redhat.com/errata/RHSA-2026:84595 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-91205?
- CVE-2026-91205 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Race Condition Enabling Link Following. CVSS score: 6.0/10. Published 2026-09-18.
- How severe is CVE-2026-91205?
- Medium severity. CVSS v3 base score is 6.0 out of 10.