CVE-2026-45764

Published: Sep 10, 2026Modified: Sep 16, 2026

9.1

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Exploitability: 3.9 / Impact: 5.2

Source: security-advisories@github.com (Secondary)

Description

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 (2)

Products: Oisf: Suricata

1 product

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Oisf Suricata	7.0.0 ≤ version < 7.0.16
Oisf Suricata	8.0.0 ≤ version < 8.0.5

Related CWEs

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

The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

References (3)

https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315

Source: security-advisories@github.com

Release NotesVendor Advisory

https://github.com/OISF/suricata/security/advisories/GHSA-5rvq-72r5-rqhr

Source: security-advisories@github.com

Third Party Advisory

https://redmine.openinfosecfoundation.org/issues/8492

Source: security-advisories@github.com

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Timeline

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