Vulnerability Database

322,732

Total vulnerabilities in the database

CVE-2026-22036

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.

  • Published: Jan 14, 2026
  • Updated: Jan 23, 2026
  • CVE: CVE-2026-22036
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.9
  • AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CWEs:

Software From Fixed in
nodejs / undici - 6.23.0
nodejs / undici 7.0.0 7.18.2