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vuln-cve/data/2026/69xxx/CVE-2026-69257.json
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{
"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"
}
}
]
}
}