CVE-2026-70478
criticalFlowise is a drag & drop user interface to build a customized large language model flow.
Vendor / product: Flowiseai — flowise
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:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H Affected products
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
References
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-qgvm-j2hm-6m38 security-advisories@github.com
- https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-qgvm-j2hm-6m38 134c704f-9b21-4f2e-91b3-4a467353bcc0