3.7

CVE-2026-6733

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

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Nodejs ≫ Undici SwPlatformnode.js Version < 6.27.0
Nodejs ≫ Undici SwPlatformnode.js Version >= 7.0.0 < 7.28.0
Nodejs ≫ Undici SwPlatformnode.js Version >= 8.0.0 < 8.5.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.23% 0.135
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
ce714d77-add3-4f53-aff5-83d477b104bb 3.7 2.2 1.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.

https://cna.openjsf.org/security-advisories.html
Vendor Advisory
https://github.com/nodejs/undici/security/advisories/GHSA-35p6-xmwp-9g52
Vendor Advisory
Mitigation
https://hackerone.com/reports/3582376
Issue Tracking