CVE-2026-22264 — Suricata detect/alert: heap-use-after-free on alert queue expansion
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 excess…
Published: 2026-01-27 · CVSS: 7.4 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7