{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-119978", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-10-30T17:24:18.282Z", "datePublished": "2026-10-30T17:28:31.216Z", "dateUpdated": "2026-10-30T17:28:31.216Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-30T17:28:31.216Z" }, "datePublic": "2026-10-30T00:00:00.000Z", "title": "Flowise through 3.1.4 Custom Function Sandbox Escape RCE via LocalFileStore", "descriptions": [ { "lang": "en", "value": "Flowise through 3.1.4 contains a sandbox escape vulnerability that allows authenticated users to execute OS commands by abusing allowlisted langchain and mammoth modules when ALLOW_BUILTIN_DEP=true. Attackers can submit JavaScript to /api/v1/node-custom-function that writes a file into the mammoth package via LocalFileStore and requires it, escaping vm2 as the Flowise process user." } ], "tags": [ "unsupported-when-assigned" ], "problemTypes": [ { "descriptions": [ { "lang": "en", "description": "Exposed Dangerous Method or Function", "cweId": "CWE-749", "type": "CWE" } ] } ], "affected": [ { "vendor": "FlowiseAI", "product": "Flowise", "packageURL": "pkg:github/FlowiseAI/Flowise", "defaultStatus": "unaffected", "versions": [ { "version": "0", "lessThanOrEqual": "3.1.4", "status": "affected", "versionType": "semver" } ], "repo": "https://github.com/FlowiseAI/Flowise" } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*", "versionEndIncluding": "3.1.4" } ] } ] } ], "metrics": [ { "format": "CVSS", "cvssV4_0": { "version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "subAvailabilityImpact": "HIGH", "baseScore": 9, "baseSeverity": "CRITICAL" } }, { "format": "CVSS", "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH", "baseScore": 8.5, "baseSeverity": "HIGH" } } ], "references": [ { "url": "https://github.com/FlowiseAI/Flowise/blob/a65f81bb43ef66d3ce734bf0dff4223ae8041c95/packages/components/src/utils.ts#L55-L114", "tags": [ "technical-description" ] }, { "url": "https://github.com/FlowiseAI/Flowise/blob/a65f81bb43ef66d3ce734bf0dff4223ae8041c95/packages/components/src/utils.ts#L1733", "tags": [ "technical-description" ] }, { "url": "https://github.com/advisories/GHSA-9gvv-qjj3-2p6g", "tags": [ "related" ], "name": "GitHub Security Advisory (GHSA-9gvv-qjj3-2p6g)" }, { "url": "https://github.com/FlowiseAI/Flowise", "tags": [ "product" ] }, { "name": "VulnCheck Advisory: Flowise through 3.1.4 Custom Function Sandbox Escape RCE via LocalFileStore", "tags": [ "third-party-advisory" ], "url": "https://www.vulncheck.com/advisories/flowise-through-3.1.4-custom-function-sandbox-escape-rce-via-localfilestore" } ], "credits": [ { "lang": "en", "value": "soovwv", "type": "finder" } ], "x_generator": { "engine": "vulncheck-endgame" } } } }