CVE-2026-4948

Name	CVE-2026-4948
Description	A flaw was found in firewalld. A local unprivileged user can exploit this vulnerability by mis-authorizing two runtime D-Bus (Desktop Bus) setters, setZoneSettings2 and setPolicySettings. This mis-authorization allows the user to modify the runtime firewall state without proper authentication, leading to unauthorized changes in network security configurations.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, 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
firewalld (PTS)	bullseye	0.9.3-2	vulnerable
	bookworm	1.3.3-1~deb12u1	vulnerable
	trixie	2.3.1-1	vulnerable
	forky	2.4.0-2	fixed
	sid	2.4.1-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
firewalld	source	(unstable)	2.4.0-2

https://bugzilla.redhat.com/show_bug.cgi?id=2452086
Fixed by: https://github.com/firewalld/firewalld/commit/5fb3914ad830feff6cb2b0670457c60a323c6c6c