{"data":{"id":"a364d053-ab58-4a76-9620-5912d582b021","title":"GHSA-xc48-889x-5qmw: Flowise: CVE-2025-8943 Patch Bypass: npm_config_yes bypasses MCP environment variable blocklist (Unauthenticated RCE)","summary":"The mitigation for CVE-2025-8943 in Flowise 3.1.1 blocks the `-y` and `--yes` flags on `npx`, but its environment-variable check denies only four names by exact match: PATH, LD_LIBRARY_PATH, DYLD_LIBRARY_PATH and NODE_OPTIONS. Because npm reads `npm_config_*` environment variables, setting `npm_config_yes=true` in an MCP server configuration makes `npx` auto-install and execute the named package, bypassing the patch. With `CUSTOM_MCP_SECURITY_CHECK=true`, the source says a default deployment without authentication allows unauthenticated remote code execution.","solution":"The source recommends allowlisting or stripping the environment before it reaches the child process rather than extending the denylist. No fixed version is stated.","labels":["security"],"sourceUrl":"https://github.com/advisories/GHSA-xc48-889x-5qmw","publishedAt":"2026-08-04T17:09:48.000Z","cveId":"CVE-2026-69263","cweIds":null,"cvssScore":null,"cvssSeverity":"high","severity":"high","attackType":["other"],"issueType":"vulnerability","affectedPackages":["flowise-components@<= 3.1.2 (fixed: 3.1.3)","flowise@<= 3.1.2 (fixed: 3.1.3)"],"affectedPackageNames":["flowise-components","flowise"],"affectedPackageRefs":["npm:flowise","npm:flowise-components"],"affectedVendors":[],"affectedVendorsRaw":["Flowise","MCP"],"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":0.00662,"epssCheckedAt":"2026-11-04T12:08:34.749Z","kevDateAdded":null,"advisoryAliases":["GHSA-xc48-889x-5qmw"],"affectedPackagesSource":null,"affectedPackagesCheckedAt":null,"patchAvailable":true,"disclosureDate":"2026-08-04T17:09:48.000Z","fixReleasedAt":"2026-06-25T10:35:37.031Z","daysToFix":-40,"fixCheckedAt":"2026-10-29T21:32:17.672Z","capecIds":null,"crossRefCount":0,"attackSophistication":"trivial","impactType":["confidentiality","integrity","availability"],"aiComponentTargeted":"plugin","llmSpecific":false,"classifierConfidence":0.93,"researchCategory":null,"atlasIds":null,"fixes":[{"ecosystem":"npm","name":"flowise-components","fixedVersion":"3.1.3","matchedVersion":"3.1.3","fixReleasedAt":"2026-06-25T10:35:37.031Z","daysToFix":-40,"match":"ecosystem","source":"tracked","status":"found","checkedAt":"2026-10-29T21:32:17.522Z"},{"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":"2026-10-29T21:32:17.522Z"}]}}