EUVD-2026-38747

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...

CVE-2026-56270 Flowise - Unauthenticated OAuth Secrets Disclosure via /api/v1/loginmethod Endpoint

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...

CVE-2026-56270

Flowise versions prior to 3.1.0 (specifically 3.0.13 and earlier) are vulnerable to a missing authentication flaw in the /api/v1/loginmethod endpoint. This allows unauthenticated remote attackers to retrieve an organization's complete SSO configuration , including OAuth client secrets in cleartex...

CVE-2026-56270 Flowise - Unauthenticated OAuth Secrets Disclosure via /api/v1/loginmethod Endpoint

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...

CVE-2026-56270 Flowise - Unauthenticated OAuth Secrets Disclosure via /api/v1/loginmethod Endpoint

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...

Flowise: Unauthenticated Information Disclosure of OAuth Secrets (Cleartext) via GET Request

Summary I have discovered a critical Missing Authentication vulnerability on the /api/v1/loginmethod endpoint. The API allows unauthenticated users guests to retrieve the full SSO configuration of any organization by simply providing an organizationId. The response includes sensitive OAuth...

GHSA-6PCV-J4JX-M4VX Flowise: Unauthenticated Information Disclosure of OAuth Secrets (Cleartext) via GET Request

Summary I have discovered a critical Missing Authentication vulnerability on the /api/v1/loginmethod endpoint. The API allows unauthenticated users guests to retrieve the full SSO configuration of any organization by simply providing an organizationId. The response includes sensitive OAuth...

PT-2026-51775

Name of the Vulnerable Software and Affected Versions Flowise versions prior to 3.1.0 Description A missing authentication issue exists in the '/api/v1/loginmethod' endpoint. Unauthenticated users can retrieve an organization's complete Single Sign-On SSO configuration, including OAuth client...

PT-2026-23789

Name of the Vulnerable Software and Affected Versions Flowise versions prior to 3.0.13 Description Flowise is a drag & drop user interface to build customized large language model flows. A critical Insecure Direct Object Reference IDOR vulnerability, combined with a Business Logic Flaw, exists in...