{"data":{"id":"95cf2bec-b389-4908-80fa-2cd352ddf5f1","title":"GHSA-9rvc-vf7m-pgm2: FlowiseAI: Authenticated Host RCE via POST /api/v1/node-custom-function and NodeVM Sandbox Escape","summary":"Flowise's POST /api/v1/node-custom-function endpoint has no route-level permission middleware, so any authenticated user or API key can submit arbitrary JavaScript to the Custom JS Function node. When E2B_APIKEY is unset, which the source describes as the common deployment case, the code runs in a NodeVM sandbox that can be escaped by abusing an Error object that crosses the sandbox boundary to recover the host Function constructor. The attacker then reaches process and child_process and runs system commands on the server host, a CVSS v3.1 score of 9.9 (Critical).","solution":"N/A -- no mitigation discussed in source.","labels":["security"],"sourceUrl":"https://github.com/advisories/GHSA-9rvc-vf7m-pgm2","publishedAt":"2026-05-14T14:57:53.000Z","cveId":null,"cweIds":null,"cvssScore":null,"cvssSeverity":"critical","severity":"critical","attackType":["other"],"issueType":"vulnerability","affectedPackages":["flowise@<= 3.1.1 (fixed: 3.1.2)"],"affectedPackageNames":["flowise"],"affectedPackageRefs":["npm:flowise"],"affectedVendors":[],"affectedVendorsRaw":["Flowise","FlowiseAI"],"classifierModel":"claude-haiku-5-5","classifierPromptVersion":"v4","summaryPromptVersion":"v2","headline":null,"headlinePromptVersion":null,"cvssVector":null,"attackVector":null,"attackComplexity":null,"privilegesRequired":null,"userInteraction":null,"exploitMaturity":null,"epssScore":null,"epssCheckedAt":null,"kevDateAdded":null,"advisoryAliases":["GHSA-9rvc-vf7m-pgm2"],"affectedPackagesSource":null,"affectedPackagesCheckedAt":null,"patchAvailable":true,"disclosureDate":"2026-05-14T14:57:53.000Z","fixReleasedAt":"2026-04-14T10:52:03.012Z","daysToFix":-30,"fixCheckedAt":"2026-10-29T21:36:22.006Z","capecIds":null,"crossRefCount":0,"attackSophistication":"trivial","impactType":["confidentiality","integrity","availability"],"aiComponentTargeted":"plugin","llmSpecific":false,"classifierConfidence":0.95,"researchCategory":null,"atlasIds":null,"fixes":[{"ecosystem":"npm","name":"flowise","fixedVersion":"3.1.2","matchedVersion":"3.1.2","fixReleasedAt":"2026-04-14T10:52:03.012Z","daysToFix":-30,"match":"ecosystem","source":"tracked","status":"found","checkedAt":"2026-10-29T21:36:21.860Z"}]}}