{"data":{"id":"15aa1daf-db37-4a20-aef1-32ed6ab70d05","title":"GHSA-qgvm-j2hm-6m38: Flowise: Unauthenticated OAuth2 token refresh endpoint returns access tokens — enables token theft for any connected service","summary":"Flowise's OAuth2 token refresh endpoint, POST /api/v1/oauth2-credential/refresh/:credentialId, is listed in WHITELIST_URLS and so requires no authentication. It decrypts the stored credential, sends a refresh request to the configured OAuth provider, and returns the new access_token in the response body. An attacker who obtains a credential ID can use this to steal access tokens for the victim's connected services, such as Google or Microsoft accounts.","solution":"Suggested fix: remove the refresh endpoint from WHITELIST_URLS in constants.ts and add an authentication check in the route handler.","labels":["security"],"sourceUrl":"https://github.com/advisories/GHSA-qgvm-j2hm-6m38","publishedAt":"2026-08-04T19:37:36.000Z","cveId":"CVE-2026-70478","cweIds":null,"cvssScore":null,"cvssSeverity":"critical","severity":"critical","attackType":["other"],"issueType":"vulnerability","affectedPackages":["flowise@<= 3.1.2 (fixed: 3.1.3)"],"affectedPackageNames":["flowise"],"affectedPackageRefs":["npm:flowise"],"affectedVendors":[],"affectedVendorsRaw":["Flowise"],"classifierModel":"claude-haiku-5-5","classifierPromptVersion":"v4","summaryPromptVersion":"v2","headline":null,"headlinePromptVersion":null,"cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":"unknown","epssScore":0.00615,"epssCheckedAt":"2026-11-04T18:09:14.469Z","kevDateAdded":null,"advisoryAliases":["GHSA-qgvm-j2hm-6m38"],"affectedPackagesSource":null,"affectedPackagesCheckedAt":null,"patchAvailable":true,"disclosureDate":"2026-08-04T19:37:36.000Z","fixReleasedAt":"2026-06-25T10:41:14.612Z","daysToFix":-40,"fixCheckedAt":"2026-10-29T21:32:07.876Z","capecIds":null,"crossRefCount":0,"attackSophistication":"trivial","impactType":["confidentiality"],"aiComponentTargeted":"api","llmSpecific":false,"classifierConfidence":0.9,"researchCategory":null,"atlasIds":null,"fixes":[{"ecosystem":"npm","name":"flowise","fixedVersion":"3.1.3","matchedVersion":"3.1.3","fixReleasedAt":"2026-06-25T10:41:14.612Z","daysToFix":-40,"match":"ecosystem","source":"tracked","status":"found","checkedAt":"2026-10-29T21:32:07.723Z"}]}}