Bug 2531669 (CVE-2026-45764) - CVE-2026-45764 suricata: Suricata http2: protocol-change type confusion can lead to denial of service
Summary: CVE-2026-45764 suricata: Suricata http2: protocol-change type confusion can l...
Keywords:
Status: NEW
Alias: CVE-2026-45764
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2533859 2533860
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-10 21:22 UTC by OSIDB Bzimport
Modified: 2026-09-15 15:11 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-09-10 21:22:37 UTC 
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.
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