{"id":"CVE-2026-91935","title":"Flowise before 3.1.4 fails to validate baseURL parameters in chat-model nodes, allowing authenticated users to redirect requests to arbitrary hosts","summary":"Flowise before 3.1.4 fails to validate baseURL parameters in chat-model nodes, allowing authenticated users to redirect requests to arbitrary hosts. Attackers with chatflows:create or chatflows:update permissions can exfiltrate LLM provi…","severity":"high","cvss":8.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L","cwe":["CWE-918"],"vendor":"FlowiseAI","product":"Flowise","affected":["Flowise < 3.1.4","Flowise < 3.1.4"],"published":"2026-09-15","updated":"2026-09-20","sourceUpdated":"2026-09-20T01:16:33.733","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-91935","references":[{"url":"https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-hx55-h48h-7rw9","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/flowise-before-3.1.4-ssrf-and-api-key-exfiltration-via-chat-model-nodes","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-09-20T00:27:47.124970Z"},"epss":0.00275,"epssPercentile":0.20134,"ingestedAt":"2026-09-15T15:39:12.924Z","slug":"CVE-2026-91935","body":"## Overview\n\nFlowise before 3.1.4 fails to validate baseURL parameters in chat-model nodes, allowing authenticated users to redirect requests to arbitrary hosts. Attackers with chatflows:create or chatflows:update permissions can exfiltrate LLM provider API keys by redirecting requests to cloud metadata services or internal hosts.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":58,"depthScoreParts":{"impact":45.7,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":207842,"id":"CVE-2026-91935","ts":1789866747358,"field":"exploit_available","old":"false","new":"true"}]}