CVE-2026-94083
CRITICALCVSS 9.4Description
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.
Timeline
Published:September 20th, 2026 2:16 AM
Last modified:September 28th, 2026 6:30 PM
CVSS Scoring
CVSS v3: 9.4 (CRITICAL)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Affected Software
From NVD CPE configuration data
Vendors
oisf
Products
suricata
Weaknesses (CWE)
References & Reports
Advisories, patches, and third-party reports
Source: NIST NVD · Data may lag official sources by up to one minute