CVE-2026-45764

critical · 9.1

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.

9.1

CVSS

0.6%

EPSS (exploit prob.)

50th

EPSS percentile

2026-09-10

Published

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

Weaknesses

CWE-843

Affected products

Vendor	Product	Affected versions
oisf	suricata	>= 7.0.0, < 7.0.16
oisf	suricata	>= 8.0.0, < 8.0.5

Check a specific version with /api/v1/cve/match.

References

https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315
https://github.com/OISF/suricata/security/advisories/GHSA-5rvq-72r5-rqhr
https://redmine.openinfosecfoundation.org/issues/8492

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-45764