CVE-2026-94083

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Source

https://cve.org/CVERecord?id=CVE-2026-94083

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-94083.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-94083

Downstream

Published

2026-09-20T01:18:05Z

Modified

2026-10-28T11:00:56Z

Severity

9.4 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L CVSS Calculator

Summary

[none]

Details

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.

Database specific

{
    "cna_assigner": "mitre",
    "cwe_ids": [
        "CWE-843"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/94xxx/CVE-2026-94083.json"
}

References

Affected packages

Git / github.com/oisf/suricata

Affected ranges

Type

GIT

Repo

https://github.com/oisf/suricata

Events

Introduced

9956286fb89f9cad9e9f95b99dc751f8666617b7

Fixed

d681600f3648030a67f7d618d30742bfd5fe7169

Fixed

e574009add9c208f319e1d9d15b3bb1229c88074

Database specific

Show details

{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "8.0.0"
                },
                {
                    "fixed": "8.0.7"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandardRange"
        },
        {
            "range": [
                {
                    "fixed": "e574009add9c208f319e1d9d15b3bb1229c88074"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

suricata-8.*

suricata-8.0.0

suricata-8.0.1

suricata-8.0.2

suricata-8.0.3

suricata-8.0.4

suricata-8.0.5

suricata-8.0.6

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-94083.json"

vanir_signatures

[
    {
        "deprecated": false,
        "digest": {
            "function_hash": "123519611658542791217793185903839003325",
            "length": 239
        },
        "id": "CVE-2026-94083-4cc97692",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/oisf/suricata/commit/e574009add9c208f319e1d9d15b3bb1229c88074",
        "target": {
            "file": "src/app-layer-detect-proto.c",
            "function": "SCAppLayerForceProtocolChange"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "250086765895846327303636932126027199299",
                "337445062926693632600607215038655352437",
                "35158876069092158881779293132592683589",
                "215952981750927905935910573082934023595"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-94083-ea129a13",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/oisf/suricata/commit/e574009add9c208f319e1d9d15b3bb1229c88074",
        "target": {
            "file": "src/app-layer-detect-proto.c"
        }
    }
]

vanir_signatures_modified

"2026-10-28T11:00:56Z"