CVE-2026-56270
Flowise - Unauthenticated OAuth Secrets Disclosure via /api/v1/loginmethod Endpoint
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-306 |
| Vendor | flowise |
| Product | flowise |
| Published | Jun 24, 2026 |
| Last Updated | Jun 24, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
Flowise / Flowise
0 < 3.1.0
References
Credits
🔍 berkdedekarginoglu