CVE-2026-101306
CVE-2026-101306 · Multiple jail filesystem root escapes
This page contains facts from public vulnerability sources. Check the original advisory before updating.
SCM_RIGHTS file descriptor passing did not preserve FD_RESOLVE_BENEATH when a descriptor was transferred. A process could clear the restriction by sending the descriptor to itself over a Unix domain socket. A process in a jail that has received a directory file descriptor from another jail can use these techniques to escape the jail's filesystem root restriction.
CVSS 9.8 · Critical · EPSS 0.3%
- Published
- Updated
Affected products and versions
freebsd
- Versions
- ≥ 15.1-RELEASE, < p4: Affected (release)
- ≥ 15.0-RELEASE, < p14: Affected (release)
- ≥ 14.5-RELEASE, < p1: Affected (release)
- ≥ 14.4-RELEASE, < p10: Affected (release)
No fix published