{"id":"CVE-2026-70478","published":"2026-08-04T20:16:54.610","lastModified":"2026-08-05T20:17:16.743","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.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-200"],"vendors":[],"products":[],"references":[{"url":"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-qgvm-j2hm-6m38","tags":[]},{"url":"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-qgvm-j2hm-6m38","tags":[]}],"exploitRefs":[{"url":"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-qgvm-j2hm-6m38","tags":[]},{"url":"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-qgvm-j2hm-6m38","tags":[]}],"hasPoc":true,"ai":null}