CVE-2026-94083

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-94083
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-20 02:16:53 UTC
Updated2026-09-28 18:30:00 UTC
DescriptionSuricata 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.

Risk And Classification

Primary CVSS: v3.1 9.4 CRITICAL from [email protected]

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

EPSS: 0.005400000 probability, percentile 0.431950000 (date 2026-09-29)

Problem Types: CWE-843 | CWE-843 CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary9.4CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
3.1CNACVSS9.4CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
Low

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Oisf Suricata All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA OISF Suricata affected 8.0.0 8.0.7 semver Not specified

References

ReferenceSourceLinkTags
github.com/OISF/suricata/compare/suricata-8.0.6...suricata-8.0.7 [email protected] github.com Release Notes
github.com/OISF/suricata/commit/e574009add9c208f319e1d9d15b3bb1229c88074 [email protected] github.com Patch
forum.suricata.io/t/suricata-8-0-7-released/6467 [email protected] forum.suricata.io Release Notes
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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