{"id":"EUVD-2025-210342","enisaUuid":"85e3c55a-8f97-38db-8508-77fec24e7439","description":"Flowise before 3.0.6 (affected versions 2.2.7-patch.1 and earlier) contains an unsandboxed remote code execution vulnerability in the Custom MCP feature, which is designed to execute OS commands such as launching local MCP servers. Because Flowise\u0027s authentication and authorization model is minimal and lacks role-based access control, and the default installation runs without authentication unless FLOWISE_USERNAME and FLOWISE_PASSWORD are set, an attacker can send a crafted JSON payload with the header \u0027x-request-from: internal\u0027 to the /api/v1/node-load-method/customMCP endpoint to execute arbitrary OS commands, resulting in complete compromise of the platform container or server.","datePublished":"Jun 25, 2026, 9:41:06 PM","dateUpdated":"Jun 30, 2026, 1:35:52 PM","baseScore":9.3,"baseScoreVersion":"4.0","baseScoreVector":"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","references":"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-6933-jpx5-q87q\nhttps://www.vulncheck.com/advisories/flowise-unsandboxed-remote-code-execution-via-custom-mcp\n","aliases":"CVE-2025-71336\nGHSA-q2xp-j85q-883h\n","assigner":"VulnCheck","epss":1.15,"enisaIdProduct":[{"id":"81b4d6df-422f-3aae-b2d2-c6fd2754e2d5","product":{"name":"Flowise","vendor":{"name":"FlowiseAI"}},"product_version":"0 \u003c3.0.6"}],"enisaIdVendor":[{"id":"6e2fd99b-6912-32b6-952d-777a7f355216","vendor":{"name":"Flowise"}}],"enisaIdVulnerability":[{"id":"641fbcf7-4663-3d0b-962f-cede188a0b1c","vulnerability":{"id":"CVE-2025-71336","description":"Flowise before 3.0.6 (affected versions 2.2.7-patch.1 and earlier) contains an unsandboxed remote code execution vulnerability in the Custom MCP feature, which is designed to execute OS commands such as launching local MCP servers. Because Flowise\u0027s authentication and authorization model is minimal and lacks role-based access control, and the default installation runs without authentication unless FLOWISE_USERNAME and FLOWISE_PASSWORD are set, an attacker can send a crafted JSON payload with the header \u0027x-request-from: internal\u0027 to the /api/v1/node-load-method/customMCP endpoint to execute arbitrary OS commands, resulting in complete compromise of the platform container or server.","datePublished":"Jun 25, 2026, 9:41:06 PM","dateUpdated":"Jun 30, 2026, 1:35:52 PM","status":"PUBLISHED","baseScore":9.3,"baseScoreVersion":"4.0","baseScoreVector":"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","references":"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-6933-jpx5-q87q\nhttps://www.vulncheck.com/advisories/flowise-unsandboxed-remote-code-execution-via-custom-mcp\n","enisa_id":"EUVD-2025-210342\n","assigner":"VulnCheck","epss":1.15,"dataProcessed":"Nov 4, 2026, 7:18:54 AM","vulnerabilityProduct":[{"id":"fcda556d-2578-371f-afc1-9ab2796b8bb3","product":{"name":"Flowise","vendor":{"name":"FlowiseAI"}},"product_version":"0 \u003c3.0.6"}],"vulnerabilityVendor":[{"id":"a2a2de04-3aff-3060-8792-d5b58e482e56","vendor":{"name":"Flowise"}}]}},{"id":"7582c84d-9372-35b9-9d36-72667d3aebef","vulnerability":{"id":"GHSA-q2xp-j85q-883h","description":"Duplicate Advisory: Flowise has unsandboxed remote code execution via Custom MCP","datePublished":"Jun 26, 2026, 12:32:05 AM","dateUpdated":"Nov 3, 2026, 5:36:20 PM","baseScore":0.0,"references":"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-6933-jpx5-q87q\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-71336\nhttps://www.vulncheck.com/advisories/flowise-unsandboxed-remote-code-execution-via-custom-mcp\n","enisa_id":"EUVD-2025-210342\n","aliases":"GHSA-q2xp-j85q-883h\n","epss":0.0,"dataProcessed":"Nov 5, 2026, 5:01:36 AM","vulnerabilityProduct":[],"vulnerabilityVendor":[]}}],"enisaIdAdvisory":[{"id":"5fbab84d-34ba-311c-8022-0b0f17d12bc9","advisory":{"id":"WID-SEC-W-2025-2048","description":"Flowise: Mehrere Schwachstellen","summary":"Ein Angreifer kann mehrere Schwachstellen in Flowise ausnutzen, um beliebigen Programmcode auszuführen, und um Informationen offenzulegen.","datePublished":"Sep 14, 2025, 10:00:00 PM","dateUpdated":"Jul 9, 2026, 10:00:00 PM","baseScore":0.0,"references":"https://wid.cert-bund.de/.well-known/csaf/white/2025/wid-sec-w-2025-2048.json\nhttps://wid.cert-bund.de/portal/wid/securityadvisory?name\u003dWID-SEC-2025-2048\n","aliases":"CVE-2025-58434\nCVE-2025-71324\nCVE-2025-71336\n","source":{"id":8,"name":"csaf_certbund"},"advisoryProduct":[{"id":"2a6d299b-f000-3cd5-84c6-0b2e14a04597","product":{"name":"3.0.6","vendor":{"name":"open source"}}},{"id":"8e9f048f-8718-353a-b130-f0bedfa5eee6","product":{"name":"Flowise","vendor":{"name":"FlowiseAI"}}}]}}]}