CVEvulnerability

CVE-2026-101304

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

Description

When fdescfs(4) was mounted in a jail with the "nodup" option, opening /dev/fd/N returned a descriptor that did not inherit FD_RESOLVE_BENEATH or the Capsicum capability rights of descriptor N. 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 (1)

  • CWE-273 Improper Check for Dropped Privileges weakness

References