{"data":{"id":"4ca134fa-55ca-4e7f-b88f-27360910f5de","title":"GHSA-wvhq-wp8g-c7vq: Flowise has Authorization Bypass via Spoofed x-request-from Header","summary":"Flowise trusts any HTTP client that sends the header `x-request-from: internal`, so an authenticated tenant session with only a browser cookie can bypass the authorization checks on `/api/v1/**`. The flaw sits in the global middleware at `external/Flowise/packages/server/src/index.ts:214`, which calls `verifyToken` for that header and runs no further permission checks. The source says the bypass grants access to internal administration endpoints such as `/api/v1/apikey`, `/api/v1/credentials`, `/api/v1/tools` and `/api/v1/node-custom-function`, and that all self-hosted Flowise 3.0.8 deployments using the default middleware are affected.","solution":"N/A -- no mitigation discussed in source.","labels":["security"],"sourceUrl":"https://github.com/advisories/GHSA-wvhq-wp8g-c7vq","publishedAt":"2026-03-06T18:48:22.000Z","cveId":"CVE-2026-30820","cweIds":null,"cvssScore":null,"cvssSeverity":"high","severity":"high","attackType":["other"],"issueType":"vulnerability","affectedPackages":["flowise@<= 3.0.12 (fixed: 3.0.13)"],"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":0.00543,"epssCheckedAt":"2026-11-04T06:10:14.827Z","kevDateAdded":null,"advisoryAliases":["GHSA-wvhq-wp8g-c7vq"],"affectedPackagesSource":null,"affectedPackagesCheckedAt":null,"patchAvailable":null,"disclosureDate":null,"fixReleasedAt":"2026-02-03T14:06:55.481Z","daysToFix":-31,"fixCheckedAt":"2026-10-29T21:40:09.210Z","capecIds":null,"crossRefCount":0,"attackSophistication":"trivial","impactType":["confidentiality","integrity"],"aiComponentTargeted":"framework","llmSpecific":false,"classifierConfidence":0.9,"researchCategory":null,"atlasIds":null,"fixes":[{"ecosystem":"npm","name":"flowise","fixedVersion":"3.0.13","matchedVersion":"3.0.13","fixReleasedAt":"2026-02-03T14:06:55.481Z","daysToFix":-31,"match":"ecosystem","source":"tracked","status":"found","checkedAt":"2026-10-29T21:40:09.063Z"}]}}