Vulnerability Description
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.
Related Weaknesses (CWE)
References
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-qgvm-j2hm-6m38
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-qgvm-j2hm-6m38
FAQ
What is CVE-2026-70478?
CVE-2026-70478 is a documented vulnerability. 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...
How severe is CVE-2026-70478?
CVSS scoring is not yet available for CVE-2026-70478. Check NVD for updates.
Is there a patch for CVE-2026-70478?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.