Description
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 v6.27.0, v7.28.0 or v8.5.0.
Workarounds
Disable keep-alive connection reuse by setting keepAliveTimeout: 0 on the Client or Pool.
Mitigation
Minimal update. May introduce new vulnerabilities or breaking changes.
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 debian 13 | | =7.15.0+dfsg+~cs3.2.0-1 || =7.15.0+dfsg+~cs3.2.0-3 || =7.16.0+dfsg+~cs3.2.0-1 || =7.16.0+dfsg+~cs3.2.0-2 || =7.18.2+dfsg+~cs3.2.0-1 || =7.24.5+dfsg+~cs3.2.0-1 || =7.24.6+dfsg+~cs3.2.0-1 || =7.24.6+dfsg+~cs3.2.0-2 || =7.24.6+dfsg+~cs3.2.0-3 || =7.3.0+dfsg1+~cs24.12.11-1 || =7.3.0+dfsg1+~cs24.12.11-2 || =8.10.2+dfsg+~cs3.2.2-1 || =8.5.0+dfsg+~cs3.2.0-1 || =8.5.0+dfsg+~cs3.2.0-2 || =8.5.0+dfsg+~cs3.2.0-3 || =8.9.0+dfsg+~cs3.2.0-1 | - |
 npm | | >=0 <6.27.0 || >=7.0.0 <7.28.0 || >=8.0.0 <8.5.0 | 6.27.0, 7.28.0, 8.5.0 |
 rpm rhel8 | | - | - |
rpm rhel9 | | <1:22.23.1-1.module+el9.8.0+24457+996af7aa | 1:22.23.1-1.module+el9.8.0+24457+996af7aa |
rpm rhel10 | | | 1:22.23.1-2.el10_2 |
debian 12 | | =5.15.0+dfsg1+~cs20.10.9.3-1 || =5.15.0+dfsg1+~cs20.10.9.3-1+deb12u1 || =5.15.0+dfsg1+~cs20.10.9.3-1+deb12u2 || =5.15.0+dfsg1+~cs20.10.9.3-1+deb12u3 || =5.15.0+dfsg1+~cs20.10.9.3-1+deb12u4 || =5.19.1+dfsg1+~cs20.10.9.5-1 || =5.19.1+dfsg1+~cs20.10.9.5-2 || =5.22.1+dfsg1+~cs20.10.10.2-1 || =5.26.3+dfsg1+~cs23.10.12-1 || =5.26.3+dfsg1+~cs23.10.12-2 || =5.26.3+dfsg1+~cs23.10.12-3 || =5.28.0+dfsg1+~cs23.11.12.3-1 || =5.28.0+dfsg1+~cs23.11.12.3-2 || =5.28.2+dfsg1+~cs23.11.12.3-1 || =5.28.2+dfsg1+~cs23.11.12.3-2 || =5.28.2+dfsg1+~cs23.11.12.3-3 || =5.28.2+dfsg1+~cs23.11.12.3-4 || =5.28.2+dfsg1+~cs23.11.12.3-5 || =5.28.2+dfsg1+~cs23.11.12.3-6 || =5.28.4+dfsg1+~cs23.12.11-1 || =5.28.4+dfsg1+~cs23.12.11-2 || =7.1.0+dfsg1+~cs24.12.10-1 || =7.15.0+dfsg+~cs3.2.0-1 || =7.15.0+dfsg+~cs3.2.0-3 || =7.16.0+dfsg+~cs3.2.0-1 || =7.16.0+dfsg+~cs3.2.0-2 || =7.18.2+dfsg+~cs3.2.0-1 || =7.2.3+dfsg1+~cs24.12.11-1 || =7.2.3+dfsg1+~cs24.12.11-2 || =7.24.5+dfsg+~cs3.2.0-1 || =7.24.6+dfsg+~cs3.2.0-1 || =7.24.6+dfsg+~cs3.2.0-2 || =7.24.6+dfsg+~cs3.2.0-3 || =7.3.0+dfsg1+~cs24.12.11-1 || =7.3.0+dfsg1+~cs24.12.11-2 || =8.10.2+dfsg+~cs3.2.2-1 || =8.5.0+dfsg+~cs3.2.0-1 || =8.5.0+dfsg+~cs3.2.0-2 || =8.5.0+dfsg+~cs3.2.0-3 || =8.9.0+dfsg+~cs3.2.0-1 | - |
debian 14 | | =7.15.0+dfsg+~cs3.2.0-1 || =7.15.0+dfsg+~cs3.2.0-3 || =7.16.0+dfsg+~cs3.2.0-1 || =7.16.0+dfsg+~cs3.2.0-2 || =7.18.2+dfsg+~cs3.2.0-1 || =7.24.5+dfsg+~cs3.2.0-1 || =7.24.6+dfsg+~cs3.2.0-1 || =7.24.6+dfsg+~cs3.2.0-2 || =7.24.6+dfsg+~cs3.2.0-3 || =7.3.0+dfsg1+~cs24.12.11-1 || =7.3.0+dfsg1+~cs24.12.11-2 || >=0 <8.5.0+dfsg+~cs3.2.0-1 | 8.5.0+dfsg+~cs3.2.0-1 |
rpm rhel10 | | | 1:24.18.0-1.el10_2 |
