CyberRota Analysis
AI-GeneratedThe undici library's retry handler is vulnerable to a resource exhaustion issue, where an attacker can exploit the handling of incomplete responses to create orphaned response bodies that remain pending indefinitely. This can lead to accumulated pending promises and streams, potentially exhausting application memory and concurrency. Developers using affected versions of undici (7.11.0 to 7.29.1 and 8.0.0 to 8.10.2) should prioritize upgrading to mitigate this risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
undici's retry handler can leave an already-exposed response body pending forever. When a server returns a successful response that declares a Content-Length, sends only part of the body, and closes the connection, the retry handler retries the request. If the retry returns a non-retryable status such as 400, the handler forwards that new response downstream and replaces its internal response stream, but the original response body that the application still holds is never ended or destroyed. As a result calls that read that body never settle, and the configured body timeout does not fire because its timer is tied to the connection parser rather than the orphaned body. An attacker-controlled server can trigger this with two short responses without keeping a connection open, and repeated requests accumulate pending promises and streams that can exhaust application concurrency or memory. This affects undici versions from 7.11.0 up to 7.29.1 and from 8.0.0 up to 8.10.2. Users should upgrade to undici 7.29.1 or 8.10.2.
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