{"id":"CVE-2025-71334","sourceIdentifier":"disclosure@vulncheck.com","published":"2026-06-25T22:16:59.127","lastModified":"2026-10-29T21:17:05.350","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Flowise before 3.0.6 contains an arbitrary file access vulnerability due to missing validation that the chatflowId and chatId parameters are UUIDs or numbers in file handling operations. By supplying a path-traversal value (e.g., '../../../../../tmp') as the chatflow id, an unauthenticated attacker can use the /api/v1/chatflows endpoint (via addBase64FilesToStorage) to write arbitrary files, and the /api/v1/get-upload-file and /api/v1/openai-assistants-file/download endpoints (via streamStorageFile) to read arbitrary files. Arbitrary file write may lead to remote code execution."},{"lang":"es","value":"Flowise antes de la versión 3.0.6 (versiones afectadas 2.2.8 y anteriores) contiene una vulnerabilidad de acceso arbitrario a archivos debido a la falta de validación de que los parámetros chatflowId y chatId son UUIDs o números en las operaciones de manejo de archivos. Al proporcionar un valor de path-traversal (por ejemplo, '.. / .. / .. / .. / ../tmp') como el ID del chatflow, un atacante no autenticado puede usar el endpoint /api/v1/chatflows (a través de addBase64FilesToStorage) para escribir archivos arbitrarios, y los endpoints /api/v1/get-upload-file y /api/v1/openai-assistants-file/download (a través de streamStorageFile) para leer archivos arbitrarios. La escritura arbitraria de archivos puede conducir a la ejecución remota de código."}],"affected":[{"source":"disclosure@vulncheck.com","affectedData":[{"vendor":"Flowise","product":"Flowise","defaultStatus":"unaffected","packageURL":"pkg:npm/flowise","versions":[{"version":"0","lessThan":"3.0.6","versionType":"semver","status":"affected"},{"version":"3.0.6","versionType":"semver","status":"unaffected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"disclosure@vulncheck.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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","baseScore":9.3,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"disclosure@vulncheck.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-06-26T10:39:19.899026Z","id":"CVE-2025-71334","options":[{"exploitation":"poc"},{"automatable":"yes"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"disclosure@vulncheck.com","type":"Secondary","description":[{"lang":"en","value":"CWE-73"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*","versionEndExcluding":"3.0.6","matchCriteriaId":"5DE0B76C-5FFA-40E2-87E1-5C520E387AF0"}]}]}],"references":[{"url":"https://github.com/FlowiseAI/Flowise/commit/8bd3de41533de78e4ef6c980e5704a1f9cb7ae6f","source":"disclosure@vulncheck.com","tags":["Patch"]},{"url":"https://github.com/FlowiseAI/Flowise/commit/c2b830f279e454e8b758da441016b2234f220ac7","source":"disclosure@vulncheck.com","tags":["Patch"]},{"url":"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-q67q-549q-p849","source":"disclosure@vulncheck.com","tags":["Exploit","Vendor Advisory"]},{"url":"https://www.vulncheck.com/advisories/flowise-arbitrary-file-access-via-missing-chat-flow-id-validation","source":"disclosure@vulncheck.com","tags":["Third Party Advisory"]},{"url":"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-q67q-549q-p849","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","tags":["Exploit","Vendor Advisory"]}]}