Description


Undici is an HTTP/1.1 client for Node.js. Prior to 7.18.0 and 6.23.0, the number of links in the decompression chain is unbounded and the default maxHeaderSize allows a malicious server to insert thousands compression steps leading to high CPU usage and excessive memory allocation. This vulnerability is fixed in 7.18.0 and 6.23.0.

Related CPE's


a

nodejs

undici

2

Weaknesses



CWE-770

CVSS impact metrics


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

5.9 · Medium

Information


Source identifier

[email protected]

Vulnerability status

Modified

Published

2026-01-14T19:16:47.833Z

1 month ago

Last modified

2026-01-22T21:15:50.070Z

4 weeks ago