Detections
Analytics
CVE-2026-22264
critical
Description
Suricata is a network IDS, IPS and NSM engine. Prior to version 8.0.3 and 7.0.14, an unsigned integer overflow can lead to a heap use-after-free condition when generating excessive amounts of alerts for a single packet. Versions 8.0.3 and 7.0.14 contain a patch. As a workaround, do not run untrusted rulesets or run with less than 65536 signatures that can match on the same packet.
References
https://redmine.openinfosecfoundation.org/issues/8190
https://github.com/OISF/suricata/security/advisories/GHSA-mqr8-m3m4-2hw5
https://github.com/OISF/suricata/commit/ac1eb394181530430fb7262969f423a1bf8f209b
https://github.com/OISF/suricata/commit/5789a3d3760dbf33d93fc56c27bd9529e5bdc8f2
https://github.com/OISF/suricata/commit/549d7bf60616de8e54686a188196453b5b22f715