undici vulnerable to HTTP response queue poisoning via keep-alive socket reuse

低 3.7CVE-2026-6733 · GHSA-35p6-xmwp-9g52 · 17/06/2026 公開 · 27/06/2026 更新

パッケージ	影響を受けるバージョン	修正済みバージョン
undici nodejs	`≥ 7.0.0, < 7.28.0≥ 8.0.0, < 8.5.0< 6.27.0`	`7.28.08.5.06.27.0`
undici npm	`≥ 7.0.0, < 7.28.0≥ 8.0.0, < 8.5.0< 6.27.0`	`7.28.08.5.06.27.0`

概要

Impact

Undici's HTTP/1.1 client is vulnerable to response queue poisoning on reused keep-alive sockets. An attacker-controlled upstream server can inject an unsolicited HTTP/1.1 response onto an idle socket after a request completes. When the client dispatches the next request on that socket, it associates the injected response with the new request, causing responses to be delivered to the wrong requests.

This requires an attacker-controlled or compromised upstream HTTP/1.1 server and keep-alive connection reuse.

Patches

Upgrade to undici v6.27.0, v7.28.0 or v8.5.0.

Workarounds

Disable keep-alive connection reuse by setting keepAliveTimeout: 0 on the Client or Pool.

NVD の説明

Impact: Undici's HTTP/1.1 client is vulnerable to response queue poisoning on reused keep-alive sockets. An attacker-controlled upstream server can inject an unsolicited HTTP/1.1 response onto an idle socket after a request completes. When the client dispatches the next request on that socket, it associates the injected response with the new request, causing responses to be delivered to the wrong requests. This requires an attacker-controlled or compromised upstream HTTP/1.1 server and keep-alive connection reuse. Patches: Upgrade to undici v6.26.0, v7.28.0 or v8.5.0. Workarounds: Disable keep-alive connection reuse by setting keepAliveTimeout: 0 on the Client or Pool.