CVE-2026-69250

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
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
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-r745-8hwv-h473	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-08-04 15:16

Updated : 2026-09-14 20:03

NVD link : CVE-2026-69250

Mitre link : CVE-2026-69250

CVE.ORG link : CVE-2026-69250

JSON object : View

Products Affected

flowiseai

flowise

CWE

CWE-639

Authorization Bypass Through User-Controlled Key

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