CVE-2026-45764
Publication date 14 September 2026
Last updated 14 September 2026
Ubuntu priority
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| suricata | 26.04 LTS resolute |
Needs evaluation
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial |
Needs evaluation
|
Severity score breakdown
CVSS version: CVSS v3.0
Base score
9.1 · Critical
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2026-45764
- https://github.com/OISF/suricata/security/advisories/GHSA-5rvq-72r5-rqhr
- https://redmine.openinfosecfoundation.org/issues/8494 (suricata-7.0.16)
- https://redmine.openinfosecfoundation.org/issues/8493 (suricata-8.0.5)
- https://github.com/OISF/suricata/commit/61c4df2821441226a2e0d3a5723f44ba95764cdd (suricata-7.0.16)
- https://github.com/OISF/suricata/commit/75a4641af6ee87a605e10557e6e2417330227a6a (suricata-8.0.5)
- https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315
- https://redmine.openinfosecfoundation.org/issues/8492