Vulnerability-Lookup

CVE-2026-94084 (GCVE-0-2026-94084)

Vulnerability from cvelistv5 – Published: 2026-09-20 01:20 – Updated: 2026-09-20 01:20

Summary

Suricata before 8.0.7 has an Http2ThreadMultiBuf use-after-free when a transaction is inspected by rules that use http.response_header with and without a transform.

Severity

9.4 (Critical)


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

CWE

CWE-416 - Use After Free

Assigner

mitre mitre root

References

3 references

URL	Tags
https://forum.suricata.io/t/suricata-8-0-7-releas…
https://github.com/OISF/suricata/commit/1d66355dc…
https://github.com/OISF/suricata/compare/suricata…

Impacted products

1 product

Vendor	Product	Version	CPE status
OISF	Suricata	Affected: 0 , < 8.0.7 (semver) cpe:2.3:a:oisf:suricata::::::::

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Suricata",
          "vendor": "OISF",
          "versions": [
            {
              "lessThan": "8.0.7",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "8.0.7",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
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        {
          "lang": "en",
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        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 9.4,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L",
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      "problemTypes": [
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          "descriptions": [
            {
              "cweId": "CWE-416",
              "description": "CWE-416 Use After Free",
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              "type": "CWE"
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      "providerMetadata": {
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        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
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      "references": [
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          "url": "https://forum.suricata.io/t/suricata-8-0-7-released/6467"
        },
        {
          "url": "https://github.com/OISF/suricata/commit/1d66355dc8737bb2ae7a198115b3067e3ad49808"
        },
        {
          "url": "https://github.com/OISF/suricata/compare/suricata-8.0.6...suricata-8.0.7"
        }
      ],
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  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2026-94084",
    "datePublished": "2026-09-20T01:20:20.503Z",
    "dateReserved": "2026-09-20T01:20:20.153Z",
    "dateUpdated": "2026-09-20T01:20:20.503Z",
    "state": "PUBLISHED"
  },
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  "vulnerability-lookup:meta": {
    "epss": {
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      "date": "2026-09-20",
      "epss": "0.00402",
      "percentile": "0.34191"
    },
    "nvd": {
      "cve": {
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          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Suricata",
                "vendor": "OISF",
                "versions": [
                  {
                    "lessThan": "8.0.7",
                    "status": "affected",
                    "version": "0",
                    "versionType": "semver"
                  }
                ]
              }
            ],
            "source": "cve@mitre.org"
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        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Suricata before 8.0.7 has an Http2ThreadMultiBuf use-after-free when a transaction is inspected by rules that use http.response_header with and without a transform."
          }
        ],
        "id": "CVE-2026-94084",
        "lastModified": "2026-09-20T02:16:53.717",
        "metrics": {
          "cvssMetricV31": [
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                "attackComplexity": "LOW",
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                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L",
                "version": "3.1"
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              "source": "cve@mitre.org",
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        "published": "2026-09-20T02:16:53.717",
        "references": [
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            "source": "cve@mitre.org",
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          },
          {
            "source": "cve@mitre.org",
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          },
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          }
        ],
        "sourceIdentifier": "cve@mitre.org",
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        "weaknesses": [
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              {
                "lang": "en",
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              }
            ],
            "source": "cve@mitre.org",
            "type": "Primary"
          }
        ]
      }
    }
  }
}

GHSA-4JPJ-5857-48JP

Vulnerability from github – Published: 2026-09-20 03:30 – Updated: 2026-09-20 03:30

Details

Suricata before 8.0.7 has an Http2ThreadMultiBuf use-after-free when a transaction is inspected by rules that use http.response_header with and without a transform.

Severity

9.4 (Critical)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-94084"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-20T02:16:53Z",
    "severity": "CRITICAL"
  },
  "details": "Suricata before 8.0.7 has an Http2ThreadMultiBuf use-after-free when a transaction is inspected by rules that use http.response_header with and without a transform.",
  "id": "GHSA-4jpj-5857-48jp",
  "modified": "2026-09-20T03:30:27Z",
  "published": "2026-09-20T03:30:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-94084"
    },
    {
      "type": "WEB",
      "url": "https://github.com/OISF/suricata/commit/1d66355dc8737bb2ae7a198115b3067e3ad49808"
    },
    {
      "type": "WEB",
      "url": "https://forum.suricata.io/t/suricata-8-0-7-released/6467"
    },
    {
      "type": "WEB",
      "url": "https://github.com/OISF/suricata/compare/suricata-8.0.6...suricata-8.0.7"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L",
      "type": "CVSS_V3"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.