๐Ÿ” CVE Alert

CVE-2026-101306

UNKNOWN 0.0

Multiple jail filesystem root escapes

CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th

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.

CWE CWE-273 CWE-281
Vendor freebsd
Product freebsd
Published Oct 15, 2026
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Affected Versions

FreeBSD / FreeBSD
15.1-RELEASE < p4 15.0-RELEASE < p14 14.5-RELEASE < p1 14.4-RELEASE < p10

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
security.freebsd.org: https://security.freebsd.org/advisories/FreeBSD-SA-26:66.jail.asc

Credits

Jan Bramkamp