CVEvulnerability

CVE-2026-101306

9.8 CRITICAL Published 2026-10-15 Modified 2026-10-20 Official page ↗
Status
Analyzed
Published
2026-10-15
Last modified
2026-10-20
Assigner
[email protected]
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-273, CWE-281

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.

Affected configurations

• freebsd freebsd 14.4 • freebsd freebsd 14.5 • freebsd freebsd 15.0 • freebsd freebsd 15.1

Related

Weakness · CWE (2)

  • CWE-273 Improper Check for Dropped Privileges weakness
  • CWE-281 Improper Preservation of Permissions weakness

References