CVE-2026-45751

Name	CVE-2026-45751
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's inspection-buffer helper could leave an inspection pointer referencing freed memory after a chained transform caused the backing buffer to be reallocated. The issue is reached during a specific network traffic processing, and requires a specific but not malicious rule. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, avoid rules that chain `dotprefix` transform after another one.
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-59q6-j4w8-8pjx
https://redmine.openinfosecfoundation.org/issues/8542 (suricata-7.0.16)
https://redmine.openinfosecfoundation.org/issues/8540 (suricata-8.0.5)
https://github.com/OISF/suricata/commit/89cde65f8d4314b007c723843b79dfa9e5e26e88 (suricata-7.0.16)
https://github.com/OISF/suricata/commit/3d371fff99d7d0af0912543174c6ea2abb0ff6a3 (suricata-8.0.5)