CVE-2026-70478

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the POST /api/v1/oauth2-credential/refresh/:credentialId endpoint is included in WHITELIST_URLS and requires no authentication. The endpoint decrypts the stored credential, sends a refresh request to the configured OAuth provider with the client secret and refresh token, and returns the refreshed access_token in the response body. An attacker with a credential ID can use the token to access the victim's connected service and can also exhaust refresh-token quota. This issue is fixed in 3.1.3.

CVSS v3 10.0 CRITICAL

10.0^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-qgvm-j2hm-6m38	Vendor Advisory
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-qgvm-j2hm-6m38	Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2026-08-04 20:16

Updated : 2026-09-11 21:14

NVD link : CVE-2026-70478

Mitre link : CVE-2026-70478

CVE.ORG link : CVE-2026-70478

JSON object : View

Products Affected

flowiseai

flowise

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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