Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Oisf | Suricata | < 7.0.14 |
Related Weaknesses (CWE)
References
- https://github.com/OISF/suricata/commit/549d7bf60616de8e54686a188196453b5b22f715Patch
- https://github.com/OISF/suricata/commit/5789a3d3760dbf33d93fc56c27bd9529e5bdc8f2Patch
- https://github.com/OISF/suricata/commit/ac1eb394181530430fb7262969f423a1bf8f209bPatch
- https://github.com/OISF/suricata/security/advisories/GHSA-mqr8-m3m4-2hw5Vendor Advisory
- https://redmine.openinfosecfoundation.org/issues/8190Permissions Required
FAQ
What is CVE-2026-22264?
CVE-2026-22264 is a vulnerability with a CVSS score of 7.4 (HIGH). 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 f...
How severe is CVE-2026-22264?
CVE-2026-22264 has been rated HIGH with a CVSS base score of 7.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-22264?
Check the references section above for vendor advisories and patch information. Affected products include: Oisf Suricata.