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VULNERABILITIES

CVE-2026-94083 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:9.4 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://forum.suricata.io/t/suricata-8-0-7-released/6467 [email protected]
https://github.com/OISF/suricata/commit/e574009add9c208f319e1d9d15b3bb1229c88074 [email protected]
https://github.com/OISF/suricata/compare/suricata-8.0.6...suricata-8.0.7 [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-843Access of Resource Using Incompatible Type ('Type Confusion')[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-94083
NVD Published Date:
Sep 20, 2026
NVD Last Modified:
Sep 22, 2026
Source:
[email protected]
CVE-2026-94083 Details - Not Deferred