Type Confusion in Suricata - CVE-2026-45764
Published: June 3, 2026
Vulnerability identifier: #VU133279
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2026-45764
CWE-ID: CWE-843
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Open Information Security Foundation
Affected software:
Suricata
Suricata
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to type confusion in the HTTP/2 traffic processing logic when processing crafted HTTP/2 traffic with a protocol change. A remote attacker can send specially crafted traffic to cause a denial of service.
How to mitigate CVE-2026-45764
Install security update from vendor's website.