CVE-2026-58224

Name	CVE-2026-58224
Description	A flaw was found in Samba's CTDB, the clustered database service used by Samba. Insufficient integrity validation of received CTDB protocol packets allows malformed packets containing invalid field lengths, improperly terminated strings, or inconsistent packet sizes to be processed without adequate bounds checking. A remote attacker with access to the CTDB private network may trigger a denial of service through process crashes or excessive memory consumption and, in limited cases, disclose adjacent memory contents.
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)
References	DSA-6401-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
samba (PTS)	bullseye	2:4.13.13+dfsg-1~deb11u6	vulnerable
	bullseye (security)	2:4.13.13+dfsg-1~deb11u8	vulnerable
	bookworm, bookworm (security)	2:4.17.12+dfsg-0+deb12u4	vulnerable
	trixie	2:4.22.10+dfsg-0+deb13u1	vulnerable
	trixie (security)	2:4.22.10+dfsg-0+deb13u2	fixed
	forky	2:4.24.5+dfsg-1	fixed
	sid	2:4.24.6+dfsg-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
samba	source	trixie	2:4.22.10+dfsg-0+deb13u2		DSA-6401-1
samba	source	(unstable)	2:4.24.5+dfsg-1

https://www.samba.org/samba/security/CVE-2026-58224-advisory.html