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9.0 Critique

CVE-2026-33805 @fastify/reply-from v12.6.1 and earlier and @fastify/http-proxy v11.4.3 and earlier process the client's Connection…

Description

@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.

Produits et versions touchés

Produit Versions touchées Corrigé en
@fastify/reply-from 12.6 premières → < 12.6.2 12.6.2
@fastify/http-proxy 11.4 premières → < 11.4.4 11.4.4
Red Hat OpenShift Dev Spaces 3.27 1776795511 premières → < 1776795511 1776795511
Red Hat OpenShift AI (RHOAI) Versions non publiées

Références

Chronologie

  1. Publiée
  2. Dernière modification
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