CVE-2026-101306 | BDVDB-2026-389883 Detail

Description#

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.

Impact#

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Exploit#

History#

1. Version 12026-10-15Record published in the CVE List.
2. Version 22026-10-16Most recent update recorded in the CVE List.