{"id":"CVE-2026-69257","revision":"acf4a8ecec91451ebb190bf65ead80b3","records":[{"revision":"acf4a8ecec91451ebb190bf65ead80b3","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-69257","aliases":[],"title":"Flowise: SSRF Protection Bypass via IPv4-Mapped IPv6 Addresses","description":"Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, Flowise's HTTP security module httpSecurity.ts did not normalize IPv4-mapped IPv6 addresses such as ::ffff:127.0.0.1 and ::ffff:169.254.169.254 before checking them against the deny list. Because ipaddr.js reports these addresses as ipv6 while IPv4 CIDR deny-list entries are ipv4, isDeniedIP() skipped the IPv4 CIDR checks. An attacker who controls DNS resolution for a hostname used by the HTTP Node, API Chain, Document Loader, MCP tool, or other paths using secureAxiosRequest(), secureFetch(), or checkDenyList() could return a AAAA record for an IPv4-mapped target and cause requests to reach localhost, internal services, or cloud metadata endpoints. This issue is fixed in version 3.1.3.","state":0,"publishedAt":"2026-08-04T15:51:47.7+00:00","modifiedAt":"2026-08-04T16:36:51.647+00:00","affected":[{"ecosystem":"Vendor product","name":"Flowise","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"FlowiseAI\",\n                    \"product\": \"Flowise\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 3.1.3\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N","score":7.6,"severity":"HIGH"}],"references":["https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-c6xh-wv4j-ppv5","https://github.com/FlowiseAI/Flowise/pull/6431","https://github.com/FlowiseAI/Flowise/commit/0fc769208395641c1411ccdb9c81416e54802155","https://github.com/FlowiseAI/Flowise/releases/tag/flowise@3.1.3"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-69257","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-69257","identifiers":["CVE-2026-69257"]},"retained":false,"historicalAffected":[]}],"coverage":[]}