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CVE-2026-71203

changedetection.io - Missing Authentication on /api/v1/full-spec Discloses Full OpenAPI Schema

Published
Last modified
published
Not listed in CISA KEV
1 proof of concept on GitHub
  • Exploitation: none
  • Automatable: yes
  • Technical impact: partial

Summary

changedetection.io's REST API resources are protected by an @auth.check_token decorator validating the caller's x-api-key header, except the Spec resource registered at /api/v1/full-spec (changedetectionio/api/Spec.py), whose get method carries neither @auth.check_token nor @validate_openapi_request.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • dgtlmoon changedetection.io

    0.55.7

References 2

GitHub · dgtlmoon/changedetection.io

GitHub · Nel-droid/CVE-2026-71203-PoC