id: CVE-2026-49869

info:
  name: "Kestra - Authentication Bypass"
  author: vedas-arpsyndicate
  severity: critical
  description: |
    Kestra is an open-source, event-driven orchestration platform. Prior to 1.0.45 and 1.3.21,
    AuthenticationFilter in Kestra OSS uses request.getPath().endsWith("/configs") to whitelist the public
    configuration endpoint from Basic Auth.
  reference:
    - https://www.exploit.observer/?keyword=CVE-2026-49869&match=exact
    - https://subdomain.center/?engine=ammonites&keyword=kestra&match=exact
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 10.0
    cve-id: CVE-2026-49869
    cwe-id: CWE-287
  metadata:
    verified: false
    max-request: 1
  tags: cve,cve2026,kestra,auth-bypass

http:
  - raw:
      - |
        GET /api/v1/configs HTTP/1.1
        Host: {{Hostname}}
        Accept: application/json
    matchers-condition: and
    matchers:
      - type: word
        part: header
        words:
          - "application/json"
      - type: word
        part: body
        words:
          - "Unauthorized"
          - "Authentication"
        negative: true
      - type: status
        status:
          - 200