{"id":"GHSA-9hrv-gvrv-6gf2","revision":"d0ea1968381d41058ef72204abb56a57","records":[{"revision":"d0ea1968381d41058ef72204abb56a57","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-9hrv-gvrv-6gf2","aliases":["CVE-2026-56275"],"title":"Flowise Execute Flow function has an SSRF vulnerability","description":"### Summary\n\nThe attacker provides an intranet address through the base url field configured in the Execute Flow node \n→ Bypass checkDenyList / resolveAndValidate in httpSecurity.ts (not called)\n→ Causes the server to initiate an HTTP request to any internal network address, read cloud metadata, or detect internal network services \n\n### Details\n\n<img width=\"1280\" height=\"860\" alt=\"9a52a74e6fe2fd78e4962d1d68057fc2\" src=\"https://github.com/user-attachments/assets/20df0006-9129-4886-8928-16d19a617c23\" />\n\nThen initiate the call: \n\n```\nPOST /api/v1/prediction/d6739838-d3b3-43d9-86ff-911a3d757a7e HTTP/1.1\nHost: 127.0.0.1:3000\nContent-Type: application/json\nAuthorization: Bearer apikey\nContent-Length: 17\n\n{\"question\": \"1\"}\n```\n\nServer received a request:\n\n<img width=\"1432\" height=\"172\" alt=\"f45c757fec408e13739db068252ff21b\" src=\"https://github.com/user-attachments/assets/d3dfe0f5-83ec-4c79-ab32-754382a68d5f\" />\n\nAnd there is an echo: \n\n<img width=\"1280\" height=\"666\" alt=\"fa0caf0deb306cfeeea8fdf8941a287e\" src=\"https://github.com/user-attachments/assets/55a94d25-120b-4e9c-9517-46c2fc2b667f\" />\n\nFix:\nCall secureFetch for verification\n\n\n\n### Impact\n\nThis is a Server-Side Request Forgery (SSRF) vulnerability that may lead to the following risks: \n- Explore Internal Web Applications\n- Access sensitive management interfaces\n- Leak internal configuration, credentials, or confidential information\n\nThis vulnerability significantly increases the risk of internal service enumeration and potential lateral movement in enterprise environments.","state":0,"publishedAt":"2026-04-16T21:23:17+00:00","modifiedAt":"2026-09-23T21:45:07.9490382+00:00","affected":[{"ecosystem":"npm","name":"flowise","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"3.1.0"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"flowise-components","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"3.1.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N","score":null,"severity":null},{"system":"CVSS_V4","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-9hrv-gvrv-6gf2","https://nvd.nist.gov/vuln/detail/CVE-2026-56275","https://github.com/FlowiseAI/Flowise","https://www.vulncheck.com/advisories/flowise-server-side-request-forgery-via-execute-flow-base-url"],"sourceUrl":"https://github.com/advisories/GHSA-9hrv-gvrv-6gf2","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-9hrv-gvrv-6gf2","identifiers":["GHSA-9hrv-gvrv-6gf2","CVE-2026-56275"]},"retained":false,"historicalAffected":[]}],"coverage":[]}