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CVE-2026-61704

CVE-2026-61704 · link-preview-js DNS Rebinding SSRF Bypass / Incomplete Fix for CVE-2026-43897

Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.

Link Preview JS extracts web links information. Prior to 4.0.4, the resolveDNSHost mitigation in index.ts validates one resolved IP address but fetches the original hostname, allowing an attacker-controlled DNS server to return a public address during validation and a loopback or internal address during the final connection. This DNS rebinding condition bypasses the SSRF protection and can cause the server-side preview fetch to reach internal HTTP resources. Redirect handling is affected by the same validation-to-fetch mismatch. This issue is fixed in version 4.0.4.

CVSS 7.5 · Alta · EPSS 0,5% · Corrección disponible

Publicación
Actualización

Pila tecnológica: node

Productos y versiones afectados

  • link-preview-js

    Versiones
    • < 4.0.4: Afectada

    Sin corrección publicada

  • link-preview-js npm

    Intervalos de versiones afectados
    • SEMVER: < 4.0.4

    Actualiza a 4.0.4

Fuentes originales

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