HIGH

CVE-2026-69250

Flowiseai Flowise 2026-08-04 CVSS v3.1

CVSS

7.5

Description

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.

Weakness (CWE)

CWE-639 Authorization Bypass (IDOR)

EPSS Score

0.4%

Probability of exploitation in next 30 days

34th percentile

References

https://github.com/FlowiseAI/Flowise/commit/da8b251a9a4c59484ceaf6f71df7406aede7bef2 Patch https://github.com/FlowiseAI/Flowise/releases/tag/flowise@3.1.3 Patch, Release Notes https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-r745-8hwv-h473 Exploit, Vendor Advisory

View on dbcve.org

Base CVE data derived from NVD (public domain). Enrichment by dbcve.org (CC-BY-4.0). Fetched via API.

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