p PatchFirst

CVE-2026-33805

CVE-2026-33805 · @fastify/reply-from vulnerable to connection header abuse enabling stripping of proxy-added headers

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

@fastify/reply-from v12.6.1 and earlier and @fastify/http-proxy v11.4.3 and earlier process the client's Connection header after the proxy has added its own headers via rewriteRequestHeaders. This allows attackers to retroactively strip proxy-added headers from upstream requests by listing them in the Connection header value. Any header added by the proxy for routing, access control, or security purposes can be selectively removed by a client. @fastify/http-proxy is also affected as it delegates to @fastify/reply-from. Upgrade to @fastify/reply-from v12.6.2 or @fastify/http-proxy v11.4.4 or later.

CVSS 9.0 · Crítica · EPSS 0,4% · Corrección disponible

Publicación
Actualización

Pila tecnológica: node

Productos y versiones afectados

  • @fastify/reply-from

    Versiones
    • ≥ 0, < 12.6.2: Afectada (semver)
    • 12.6.2: No afectada (semver)

    Actualiza a 12.6.2

  • @fastify/http-proxy

    Versiones
    • ≥ 0, < 11.4.4: Afectada (semver)
    • 11.4.4: No afectada (semver)

    Actualiza a 11.4.4

  • @fastify/reply-from npm

    Intervalos de versiones afectados
    • SEMVER: < 12.6.2

    Actualiza a 12.6.2

  • @fastify/http-proxy npm

    Intervalos de versiones afectados
    • SEMVER: < 11.4.4

    Actualiza a 11.4.4

Fuentes originales

Comprueba tu servidor →