CVE-2026-45254

CVE-2026-45254: Incorrect libcap_net limitation list manipulation

Vendor Freebsd
Product FreeBSD
Weakness CWE-269
Published May 21, 2026
Last update May 21, 2026

CVSS base score

What the vulnerability does

01Description

In the case of the cap_net service, when a key present in the old limit was omitted from the new limit, the missing key was treated as "allow any" instead of being rejected. In certain scenarios, an application that had previously restricted a subset of network operations could ask for a new limit that extended the permissions of the process.

Key dates

02Disclosure timeline

May 21, 2026 CVE published
May 21, 2026 Record updated