CVE-2026-69250: Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.…
- Occurred
- Aug 4, 2026
- Published
- Aug 4, 2026
- Source
- NVD CVE
Summary
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the OAuth2 token refresh endpoint POST /api/v1/oauth2-credential/refresh/:credentialId is unauthenticated by design and performs a server-side HTTP request to the credential-controlled accessTokenUrl without SSRF protections. Runtime validation confirmed that the endpoint was reachable without authentication, triggered outbound POST requests to an attacker-controlled server, reflected the full remote response body to the caller through tokenInfo, and sent client_id, client_secret, grant_type=refresh_token, and refresh_token in the request body. This issue is fixed in version 3.1.3.
Tags
- CVE
- CVE-2026-69250
- cvss:HIGH
Classification
Rationale: Unauthenticated OAuth2 endpoint exposes sensitive credentials and enables SSRF attacks, leading to potential data breaches.
Classifier: Qwen/Qwen3.5-35B-A3B-FP8