CVE-2026-73483

{"id": "CVE-2026-73483", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-73483", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-08-14T22:25:16.050386Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}], "cvssMetricV40": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 9.4, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "disclosure@vulncheck.com", "affectedData": [{"vendor": "FlowiseAI", "product": "Flowise", "versions": [{"status": "affected", "version": "0", "lessThan": "3.1.3", "versionType": "semver"}, {"status": "unaffected", "version": "3.1.3", "versionType": "semver"}], "packageURL": "pkg:npm/flowise", "defaultStatus": "unaffected"}, {"vendor": "FlowiseAI", "product": "Flowise", "versions": [{"status": "affected", "version": "0", "lessThan": "3.1.3", "versionType": "semver"}, {"status": "unaffected", "version": "3.1.3", "versionType": "semver"}], "packageURL": "pkg:npm/flowise-components", "defaultStatus": "unaffected"}]}], "published": "2026-08-13T12:17:23.540", "references": [{"url": "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-9gvv-qjj3-2p6g", "tags": ["Exploit", "Mitigation", "Vendor Advisory"], "source": "disclosure@vulncheck.com"}, {"url": "https://www.vulncheck.com/advisories/flowise-before-sandbox-escape-via-puppeteer", "tags": ["Third Party Advisory"], "source": "disclosure@vulncheck.com"}, {"url": "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-9gvv-qjj3-2p6g", "tags": ["Exploit", "Mitigation", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "disclosure@vulncheck.com", "description": [{"lang": "en", "value": "CWE-78"}]}], "descriptions": [{"lang": "en", "value": "Flowise (packages flowise and flowise-components) in versions <= 3.1.2 contain a sandbox escape in the vm2/@flowiseai/nodevm JavaScript sandbox. An authenticated user with access to the /api/v1/node-custom-function endpoint can escape the sandbox by supplying attacker-controlled executablePath and args parameters to puppeteer.launch(), which internally invokes child_process.spawn() outside the sandbox boundary. This allows execution of arbitrary OS commands as the Flowise process user (root in the official Docker image) and arbitrary host file disclosure via Chromium's file:// URL handling. In versions 3.0.8\u20133.1.2 exploitation requires ALLOW_BUILTIN_DEP=true; earlier versions are exploitable by default. Fixed in 3.1.3."}, {"lang": "es", "value": "Flowise (paquetes flowise y flowise-components) en versiones menor o igual que 3.1.2 contienen un escape de sandbox en el sandbox JavaScript vm2/@flowiseai/nodevm. Un usuario autenticado con acceso al endpoint /api/v1/node-custom-function puede escapar del sandbox al proporcionar par\u00e1metros executablePath y args controlados por el atacante a puppeteer.launch(), que invoca internamente child_process.spawn() fuera del l\u00edmite del sandbox. Esto permite la ejecuci\u00f3n de comandos arbitrarios del sistema operativo como el usuario del proceso de Flowise (root en la imagen oficial de Docker) y la divulgaci\u00f3n arbitraria de archivos del host a trav\u00e9s del manejo de URL file: // de Chromium. En las versiones 3.0.8-3.1.2 la explotaci\u00f3n requiere ALLOW_BUILTIN_DEP=true; las versiones anteriores son explotables por defecto. Corregido en 3.1.3."}], "lastModified": "2026-10-24T15:10:00.190", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4161D3F2-D78A-4305-A85F-2851D7704224", "versionEndIncluding": "3.1.2"}], "operator": "OR"}]}], "sourceIdentifier": "disclosure@vulncheck.com"}