CVE-2026-16728— undici 输入验证错误漏洞

undici vulnerable to downstream response desynchronization via retry interceptor

undici's retry interceptor can deliver a response whose body length does not match the Content-Length header exposed to the application after a retry or resume of a partial response. In undici before 6.28.0, from 7.0.0 up to before 7.29.0, and from 8.0.0 up to before 8.9.0, a malicious or faulty upstream can return a partial response with a mismatched framing header, close the socket early, and have the retry interceptor assemble a body of a different length while the original Content-Length stays attached. Applications that use the retry interceptor and forward upstream headers and bodies downstream, such as proxies or gateways, may then emit an invalid HTTP response with a stale Content-Length, leading to downstream response desynchronization, connection hangs, or response corruption. Exploitation requires the retry interceptor enabled, an upstream returning a mismatched partial response, and a downstream forwarder that does not remove or recalculate Content-Length. The issue is fixed in undici 6.28.0, 7.29.0, and 8.9.0.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

HTTP请求的解释不一致性(HTTP请求私运)

undici 输入验证错误漏洞

undici undici是undici组织的一个HTTP客户端库。 undici 6.28.0之前版本、7.0.0版本至7.29.0之前版本和8.0.0版本至8.9.0之前版本存在输入验证错误漏洞，该漏洞源于retry interceptor在重试或恢复部分响应时，传递的响应体长度与Content-Length头不匹配，可能导致下游响应去同步、连接挂起或响应损坏。

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