CVE-2026-45759

Name	CVE-2026-45759
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, Suricata could repeatedly perform expensive parsing of large HTTP `Content-Disposition` headers during HTTP response body processing. Crafted HTTP traffic could cause excessive CPU usage and denial of service. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, use a rule like `alert http1 any any -> any any (sid: 1; http.request_header; content: "Content-Disposition:"; startswith; bsize: > 8192; bypass;)`.
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-cfq5-g2v5-6652
https://redmine.openinfosecfoundation.org/issues/8531 (suricata-7.0.16)
https://redmine.openinfosecfoundation.org/issues/8530 (suricata-8.0.5)
https://github.com/OISF/suricata/commit/a41b135c5c054c806346f8d6e02d67b8f5594be0 (suricata-7.0.16)
https://github.com/OISF/suricata/commit/8abe0f2a8de0d910d4d4461474f5bfb519877053 (suricata-8.0.5)