CVE-2026-45764
9.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Summary
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, a protocol change while processing HTTP/2 traffic could lead to type confusion in Suricata. Crafted traffic may cause Suricata to crash, resulting in denial of service. Versions 7.0.16 and 8.0.5 contain a fix. As a workaround, disable HTTP/2 parsing if it is not required.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| OISF | suricata | >= 8.0.0, < 8.0.5 | affected |
| OISF | suricata | < 7.0.16 | affected |
Weaknesses
- CWE-843: CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')
References
- https://github.com/OISF/suricata/security/advisories/GHSA-5rvq-72r5-rqhr
- https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315
- https://redmine.openinfosecfoundation.org/issues/8492
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