{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-69257", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-08-03T19:54:19.853Z", "datePublished": "2026-08-04T15:51:47.700Z", "dateUpdated": "2026-08-04T16:36:51.647Z"}, "containers": {"cna": {"title": "Flowise: SSRF Protection Bypass via IPv4-Mapped IPv6 Addresses", "problemTypes": [{"descriptions": [{"cweId": "CWE-918", "lang": "en", "description": "CWE-918: Server-Side Request Forgery (SSRF)", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-1389", "lang": "en", "description": "CWE-1389: Incorrect Parsing of Numbers with Different Radices", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "PRESENT", "privilegesRequired": "LOW", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "LOW", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 7.6, "baseSeverity": "HIGH", "vectorString": "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", "version": "4.0"}}], "references": [{"name": "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-c6xh-wv4j-ppv5", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-c6xh-wv4j-ppv5"}, {"name": "https://github.com/FlowiseAI/Flowise/pull/6431", "tags": ["x_refsource_MISC"], "url": "https://github.com/FlowiseAI/Flowise/pull/6431"}, {"name": "https://github.com/FlowiseAI/Flowise/commit/0fc769208395641c1411ccdb9c81416e54802155", "tags": ["x_refsource_MISC"], "url": "https://github.com/FlowiseAI/Flowise/commit/0fc769208395641c1411ccdb9c81416e54802155"}, {"name": "https://github.com/FlowiseAI/Flowise/releases/tag/flowise@3.1.3", "tags": ["x_refsource_MISC"], "url": "https://github.com/FlowiseAI/Flowise/releases/tag/flowise@3.1.3"}], "affected": [{"vendor": "FlowiseAI", "product": "Flowise", "versions": [{"version": "< 3.1.3", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-04T15:51:47.700Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-c6xh-wv4j-ppv5", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-c6xh-wv4j-ppv5", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-08-04T16:34:45.470567Z", "id": "CVE-2026-69257", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-04T16:36:51.647Z"}}]}}

{}

{}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,3.1.3)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Flowise", "source": "cna", "vendor": "FlowiseAI"}, "product": "flowise", "vendor": "flowiseai"}], "created": "2026-08-04T17:30:02.903046+00:00", "updated": "2026-08-04T17:30:02.903064+00:00", "vendors": ["flowiseai", "flowiseai$PRODUCT$flowise"]}