CVE-2026-45764

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.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315	Release Notes Vendor Advisory
https://github.com/OISF/suricata/security/advisories/GHSA-5rvq-72r5-rqhr	Third Party Advisory
https://redmine.openinfosecfoundation.org/issues/8492	Permissions Required

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:oisf:suricata::::::::
	cpe:2.3:a:oisf:suricata::::::::

History

16 Sep 2026, 20:17

Type	Values Removed	Values Added
References	~~() https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315 -~~	() https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315 - Release Notes, Vendor Advisory
References	~~() https://github.com/OISF/suricata/security/advisories/GHSA-5rvq-72r5-rqhr -~~	() https://github.com/OISF/suricata/security/advisories/GHSA-5rvq-72r5-rqhr - Third Party Advisory
References	~~() https://redmine.openinfosecfoundation.org/issues/8492 -~~	() https://redmine.openinfosecfoundation.org/issues/8492 - Permissions Required
First Time		Oisf Oisf suricata
CPE		cpe:2.3:a:oisf:suricata::::::::

Information

Published : 2026-09-10 22:16

Updated : 2026-09-16 20:17

NVD link : CVE-2026-45764

Mitre link : CVE-2026-45764

CVE.ORG link : CVE-2026-45764

JSON object : View

Products Affected

oisf

suricata

CWE

CWE-843

Access of Resource Using Incompatible Type ('Type Confusion')

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