CVE-2025-52889

Name	CVE-2025-52889
Description	Incus is a system container and virtual machine manager. When using an ACL on a device connected to a bridge, Incus version 6.12 and 6.13 generates nftables rules for local services (DHCP, DNS...) that partially bypass security options `security.mac_filtering`, `security.ipv4_filtering` and `security.ipv6_filtering`. This can lead to DHCP pool exhaustion and opens the door for other attacks. A patch is available at commit 2516fb19ad8428454cb4edfe70c0a5f0dc1da214.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
incus (PTS)	sid, trixie	6.0.4-2	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
incus	source	(unstable)	(not affected)

Notes

- incus <not-affected> (Vulnerable code not present)
https://github.com/lxc/incus/security/advisories/GHSA-9q7c-qmhm-jv86
Introduced with: https://github.com/lxc/incus/commit/a7c33301738aede3c035063e973b1d885d9bac7c (v6.12.0)
Fixed by: https://github.com/lxc/incus/commit/2516fb19ad8428454cb4edfe70c0a5f0dc1da214