{"data":{"id":"185696db-2282-4cc5-baf2-7e55eb9d51be","title":"GHSA-m99r-2hxc-cp3q: Flowise has an MCP Security Bypass that Enables RCE","summary":"Flowise's MCP feature contains a security bypass chain that lets an attacker run arbitrary commands on the host. The validateCommandFlags blocklist in packages/components/nodes/tools/MCP/core.ts omits docker build, so a Custom MCP Server configured as docker build <remote-URL> pulls and runs a remote Dockerfile. A second bypass uses the long alias --yes, which is not blocked for npx, letting npx install and execute an attacker-supplied npm package. The attacker needs a Flowise account of any role or an API key with view and update permissions for chatflows, and the server must have the docker or npx command available.","solution":"N/A -- no mitigation discussed in source.","labels":["security"],"sourceUrl":"https://github.com/advisories/GHSA-m99r-2hxc-cp3q","publishedAt":"2026-05-14T14:57:30.000Z","cveId":null,"cweIds":null,"cvssScore":null,"cvssSeverity":"high","severity":"high","attackType":["jailbreak","other"],"issueType":"vulnerability","affectedPackages":["flowise-components@<= 3.1.1 (fixed: 3.1.2)","flowise@<= 3.1.1 (fixed: 3.1.2)"],"affectedPackageNames":["flowise-components","flowise"],"affectedPackageRefs":["npm:flowise","npm:flowise-components"],"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":null,"epssScore":null,"epssCheckedAt":null,"kevDateAdded":null,"advisoryAliases":["GHSA-m99r-2hxc-cp3q"],"affectedPackagesSource":null,"affectedPackagesCheckedAt":null,"patchAvailable":true,"disclosureDate":"2026-05-14T14:57:30.000Z","fixReleasedAt":"2026-04-14T10:49:37.789Z","daysToFix":-30,"fixCheckedAt":"2026-10-29T21:36:23.522Z","capecIds":null,"crossRefCount":0,"attackSophistication":"trivial","impactType":["confidentiality","integrity","availability"],"aiComponentTargeted":"plugin","llmSpecific":false,"classifierConfidence":0.9,"researchCategory":null,"atlasIds":["AML.T0054"],"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":"2026-10-29T21:36:23.374Z"},{"ecosystem":"npm","name":"flowise-components","fixedVersion":"3.1.2","matchedVersion":"3.1.2","fixReleasedAt":"2026-04-14T10:49:37.789Z","daysToFix":-30,"match":"ecosystem","source":"tracked","status":"found","checkedAt":"2026-10-29T21:36:23.374Z"}]}}