CVE-2026-19079
Fixed in a distro release EPSS <1%CVSS 4.4
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.
Products: Red Hat Hardened Images, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | policycoreutils | no fix |
| Debian 13 | policycoreutils | no fix |
| Debian 14 | policycoreutils | no fix |
| Red Hat hummingbird 1 | policycoreutils | 0:3.11-2.2.hum1 |
| Red Hat hummingbird 1 | policycoreutils-dbus | 0:3.11-2.2.hum1 |
| Red Hat hummingbird 1 | policycoreutils-devel | 0:3.11-2.2.hum1 |
| Red Hat hummingbird 1 | policycoreutils-gui | 0:3.11-2.2.hum1 |
| Red Hat hummingbird 1 | policycoreutils-newrole | 0:3.11-2.2.hum1 |
| Red Hat hummingbird 1 | policycoreutils-python-utils | 0:3.11-2.2.hum1 |
| Red Hat hummingbird 1 | policycoreutils-restorecond | 0:3.11-2.2.hum1 |
| Red Hat hummingbird 1 | policycoreutils-sandbox | 0:3.11-2.2.hum1 |
| Red Hat hummingbird 1 | python3-policycoreutils | 0:3.11-2.2.hum1 |
| Ubuntu 14.04 LTS | policycoreutils | no fix |
| Ubuntu 16.04 LTS | policycoreutils | no fix |
| Ubuntu 18.04 LTS | policycoreutils | no fix |
| Ubuntu 20.04 LTS | policycoreutils | no fix |
| Ubuntu 22.04 LTS | policycoreutils | no fix |
| Ubuntu 24.04 LTS | policycoreutils | no fix |
| Ubuntu 26.04 LTS | policycoreutils | no fix |
| Ubuntu 26.10 | policycoreutils | no fix |