CVE-2026-19079

The record

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.

Affected packages

Related vulnerabilities

• CVE-2026-53613 util-linux is a random collection of Linux utilities. CWE-367
• CVE-2026-53612 util-linux is a random collection of Linux utilities. CWE-367
• CVE-2026-67693 An issue in gnutls v.3.8.13 allows an attacker to obtain sensitive information via… CWE-367
• CVE-2026-106451 yawkat LZ4 Java provides LZ4 compression for Java. CWE-367
• CVE-2026-86805 A time-of-check to time-of-use (TOCTOU) race condition in the dynamic loader (ld.so) of… CWE-367
• CVE-2026-68488 A Time-of-check Time-of-use (TOCTOU) race condition leading to insecure symlink following… CWE-367
• CVE-2026-87554 Race condition in Chromoting in Google Chrome on on Windows prior to 153.0.8010.36… CWE-367
• CVE-2026-87523 Race condition in DataTransfer in Google Chrome prior to 153.0.8010.36 allowed a remote… CWE-367