VULNERABILITY INTELLIGENCE
CVE-2026-56270
CVSS score8.7 HIGH
EPSS probability2.05%
CISA KEVNot currently listed
Published2026-06-24
Last modified2026-06-26
CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Description
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.
Weakness classification
- CWE-306: Missing Authentication for Critical Function
Primary references
- disclosure@vulncheck.com — Exploit, Vendor Advisory
- disclosure@vulncheck.com — Third Party Advisory
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 — Exploit, Vendor Advisory