CVE-2026-57224

Name	CVE-2026-57224
Description	Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, the DHCP parser in rust/src/dhcp/dhcp.rs creates stateless transactions without recording their packet direction with AppLayerTxData::for_direction(), so a sensor that observes only one direction cannot mark the unseen direction inspected or free completed transactions. The RDP parser in rust/src/rdp/rdp.rs has the same direction-state defect. The per-flow transaction list can grow without bound and cleanup repeatedly scans it, causing increasing CPU and memory consumption and eventual denial of service. This issue is fixed in version 8.0.6.
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
suricata (PTS)	trixie	1:7.0.10-1+deb13u4	vulnerable
	forky, sid	1:8.0.7-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
suricata	source	(unstable)	1:8.0.6-1

Notes

[trixie] - suricata <ignored> (Will be removed in next point release)
https://github.com/OISF/suricata/security/advisories/GHSA-m2vc-g65c-ph7m
https://redmine.openinfosecfoundation.org/issues/8622 (suricata-8.0.6)
https://github.com/OISF/suricata/commit/f234d155bcf43df403ee0823b60de8d02e2b99b2 (suricata-8.0.6)
https://github.com/OISF/suricata/commit/bac8a69ca48c14582d39a244a87edad44751ebe1 (suricata-8.0.6)
https://github.com/OISF/suricata/commit/ef035c7603293a10c5ad087e3d20b05f75236144 (suricata-8.0.6)