CVE-2026-19079
MEDIUM
MEDIUM
Priority: 0.00
BB Relevance:
14/100
Published: 2026-08-07
Modified: 2026-11-05
First seen: 2026-11-05
Status: active
Attack Surface
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
High
PR:
Low
UI:
Required
S:
Unchanged
C:
None
I:
High
A:
None
Description
A TOCTOU (Time-of-Check-Time-of-Use) race condition vulnerability was found in the fixfiles script in policycoreutils. When running fixfiles relabel or fixfiles restore, the script used find and chcon commands to locate and relabel unlabeled files under /tmp and other directories. A local attacker could exploit a race window between the file discovery and the label change operation by swapping directory components with symlinks, causing chcon to follow the symlink and modify SELinux labels on arbitrary system files. This could undermine SELinux mandatory access control protections on critical files such as /etc/shadow.
Weakness Classification (1)
References & Advisories (4)
vendor-advisory
x_refsource_REDHAT
vdb-entry
x_refsource_REDHAT
issue-tracking
x_refsource_REDHAT