Vulnerability-Lookup

GHSA-VJ3W-H7V3-5RPR

Vulnerability from github – Published: 2026-08-11 18:30 – Updated: 2026-08-11 18:30

Details

Genkit does not properly validate host request headers. Any host on the developer's network, and any website the developer visits (via DNS rebinding), can reach POST /api/runAction on the Dev UI server (default port 4000) and execute any registered Genkit action and read the result. Fixed on 2026-06-18.

Severity

7.8 (High)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-67179"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-644"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-11T16:17:34Z",
    "severity": "HIGH"
  },
  "details": "Genkit does not properly validate host request headers. Any host on the developer\u0027s network, and any website the developer visits (via DNS rebinding), can reach POST /api/runAction on the Dev UI server (default port 4000) and execute any registered Genkit action and read the result. Fixed on 2026-06-18.",
  "id": "GHSA-vj3w-h7v3-5rpr",
  "modified": "2026-08-11T18:30:48Z",
  "published": "2026-08-11T18:30:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-67179"
    },
    {
      "type": "WEB",
      "url": "https://github.com/genkit-ai/genkit/issues/5581"
    },
    {
      "type": "WEB",
      "url": "https://github.com/genkit-ai/genkit/pull/5587"
    },
    {
      "type": "WEB",
      "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-223-01.json"
    },
    {
      "type": "WEB",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-67179"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-67179 (GCVE-0-2026-67179)

Vulnerability from cvelistv5 – Published: 2026-08-11 15:56 – Updated: 2026-08-11 15:56

Title

Genkit improper host header validation

Summary

Severity

7.8 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · cisa-cg (v2.0.3)

Decision recorded 2026-07-28 14:54 UTC

CWE

CWE-644 - Improper Neutralization of HTTP Headers for Scripting Syntax

Assigner

cisa-cg

References

4 references

URL	Tags
https://github.com/genkit-ai/genkit/issues/5581	issue-tracking
https://github.com/genkit-ai/genkit/pull/5587	patch
https://www.cve.org/CVERecord?id=CVE-2026-67179	vdb-entry
https://raw.githubusercontent.com/cisagov/CSAF/de…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
genkit-ai	genkit	Affected: 0 , < 2026-06-18 (custom) Unaffected: 2026-06-18

Date Public

2026-06-18 00:00

Credits

George Chen

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JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "genkit",
          "vendor": "genkit-ai",
          "versions": [
            {
              "lessThan": "2026-06-18",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            },
            {
              "status": "unaffected",
              "version": "2026-06-18"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "George Chen"
        }
      ],
      "datePublic": "2026-06-18T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Genkit does not properly validate host request headers. Any host on the developer\u0027s network, and any website the developer visits (via DNS rebinding), can reach POST /api/runAction on the Dev UI server (default port 4000) and execute any registered Genkit action and read the result. Fixed on 2026-06-18."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        },
        {
          "other": {
            "content": {
              "id": "CVE-2026-67179",
              "options": [
                {
                  "Exploitation": "poc"
                },
                {
                  "Automatable": "no"
                },
                {
                  "Technical Impact": "total"
                }
              ],
              "role": "CISA Coordinator",
              "timestamp": "2026-07-28T14:54:11.501038Z",
              "version": "2.0.3"
            },
            "type": "ssvc"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-644",
              "description": "CWE-644 Improper Neutralization of HTTP Headers for Scripting Syntax",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-11T15:56:09.323Z",
        "orgId": "9119a7d8-5eab-497f-8521-727c672e3725",
        "shortName": "cisa-cg"
      },
      "references": [
        {
          "name": "url",
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/genkit-ai/genkit/issues/5581"
        },
        {
          "name": "url",
          "tags": [
            "patch"
          ],
          "url": "https://github.com/genkit-ai/genkit/pull/5587"
        },
        {
          "name": "url",
          "tags": [
            "vdb-entry"
          ],
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-67179"
        },
        {
          "name": "url",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-223-01.json"
        }
      ],
      "title": "Genkit improper host header validation"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9119a7d8-5eab-497f-8521-727c672e3725",
    "assignerShortName": "cisa-cg",
    "cveId": "CVE-2026-67179",
    "datePublished": "2026-08-11T15:56:09.323Z",
    "dateReserved": "2026-07-28T14:53:02.567Z",
    "dateUpdated": "2026-08-11T15:56:09.323Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-VJ3W-H7V3-5RPR

CVE-2026-67179 (GCVE-0-2026-67179)

Tags

Sightings

Nomenclature