CVE search · CVE-2026-6733
CVE-2026-6733
low 3.7
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.
Details
- Status
- Analyzed
- Published
- Last changed
- Source
- ce714d77-add3-4f53-aff5-83d477b104bb
- Weakness
- CWE-367
Severity
| Version | Score | Vector | Source |
|---|---|---|---|
| CVSS 3.1 | low 3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N |
ce714d77-add3-4f53-aff5-83d477b104bbSecondary |
Affected products
Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.
- nodejs · undici
References
- https://cna.openjsf.org/security-advisories.htmlVendor Advisory
- https://github.com/nodejs/undici/security/advisories/GHSA-35p6-xmwp-9g52MitigationVendor Advisory
- https://hackerone.com/reports/3582376Issue Tracking