CVE-2026-118659

CVE-2026-118659 · @happy-dom/server-renderer: ServerRendererServer Target-Origin Bypass SSRF / Open Proxy

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

Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. Prior to 21.0.2, the Happy DOM server-renderer package's ServerRendererServer accepts unauthenticated HTTP/2 requests and resolves attacker-controlled :path values against server.targetOrigin in #onIncomingRequest in packages/@happy-dom/server-renderer/src/ServerRendererServer.ts without confirming that the resolved origin remains trusted before calling fetch. A protocol-relative path can change the destination to an arbitrary HTTP or HTTPS endpoint reachable by the server, including local and internal services, and the proxy relays the fetched response headers and body to the requester. This issue is fixed in version 21.0.2.

CVSS 7.5 · Alta · EPSS 0,4%

Publicación

2026-10-28T20:20:29.561Z

Actualización

2026-10-29T18:27:45.701Z

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