CVE-2026-45764
criticalSuricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine.
Vendor / product: Oisf — suricata
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
9.1
9.1 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H Severity source: NVD CVSS v3.1 (security-advisories@github.com)
Timeline (UTC)
Published: 2026-09-10 22:16
Modified: 2026-09-16 20:17
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-10-27 06:52 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
oisf / suricata ≥7.0.0 <7.0.16, ≥8.0.0 <8.0.5
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315
References
- https://forum.suricata.io/t/suricata-8-0-5-and-7-0-16-released/6315 security-advisories@github.com
- https://github.com/OISF/suricata/security/advisories/GHSA-5rvq-72r5-rqhr security-advisories@github.com
- https://redmine.openinfosecfoundation.org/issues/8492 security-advisories@github.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-27 06:52 UTC · record ↗