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CVE-2026-69257

CVE-2026-69257 · Flowise: SSRF Protection Bypass via IPv4-Mapped IPv6 Addresses

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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.

CVSS 7.6 · Élevée · EPSS 0,4% · Correctif disponible

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Pile logicielle: node

Produits et versions concernés

  • flowise

    Versions du logiciel
    • < 3.1.3: Concernée

    Aucun correctif publié

  • flowise npm

    Plages de versions concernées
    • SEMVER: < 3.1.3

    Mettez à jour vers 3.1.3

Sources originales

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