[CVE-2026-94083] Suricata before 8.0.7 has a DoH2 type confusion that can cause an invalid free, because cleanup code…

Descripción técnica

Suricata before 8.0.7 has a DoH2 type confusion that can cause an invalid free, because cleanup code for the HTTP2 state is executed even though the actual state is HTTP1 (when there is a DoH2 request with an HTTP1 to HTTP2 upgrade). This requires app-layer.protocols.doh2 to be enabled, which is the default in 8.x versions.

Puntuación CVSS

Score: 9.4/10 — Severidad: CRITICAL — Estado NIST: Received

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

Debilidades (CWE)

CWE-843

Fuente oficial

Publicado en NIST NVD.