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CVE-2026-56270GHSA-6PCV-J4JX-M4VX

Flowise - Unauthenticated OAuth Secrets Disclosure via /api/v1/loginmethod Endpoint

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 3.1.0
1 Nuclei template
  • Exploitation: poc
  • Automatable: yes
  • Technical impact: partial

Summary

Flowise before 3.1.0 (versions 3.0.13 and earlier) contains a missing authentication vulnerability in the /api/v1/loginmethod endpoint that allows unauthenticated users to retrieve an organization's complete SSO configuration, including OAuth client secrets in cleartext, by providing an organizationId parameter. Remote attackers can send a GET request to harvest sensitive API credentials for Google, Microsoft/Azure, GitHub, and Auth0 integrations. This affects FlowiseAI Cloud and self-hosted instances where the endpoint is exposed.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: poc · Automatable: yes · Technical impact: partial

  3. Record last updated

Affected versions

  • Flowise Flowise

    fixed in 3.1.0

  • flowisenpm

    fixed in 3.1.0

References 3

GitHub · FlowiseAI/Flowise

vulncheck.com

GitHub · projectdiscovery/nuclei-templates