CVE-2026-45764

Name	CVE-2026-45764
Description	Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 7.0.16 and 8.0.5, a protocol change while processing HTTP/2 traffic could lead to type confusion in Suricata. Crafted traffic may cause Suricata to crash, resulting in denial of service. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, disable HTTP/2 parsing if it is not required.
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	1:8.0.6-1	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)	1:8.0.5-1

Notes

https://github.com/OISF/suricata/security/advisories/GHSA-5rvq-72r5-rqhr
https://redmine.openinfosecfoundation.org/issues/8494 (suricata-7.0.16)
https://redmine.openinfosecfoundation.org/issues/8493 (suricata-8.0.5)
https://github.com/OISF/suricata/commit/61c4df2821441226a2e0d3a5723f44ba95764cdd (suricata-7.0.16)
https://github.com/OISF/suricata/commit/75a4641af6ee87a605e10557e6e2417330227a6a (suricata-8.0.5)