CVE-2026-22036
Low
Low
Medium
High
Critical
3.7
CVSS Score
Published: Jan 14, 2026
Last Modified: Jan 14, 2026
Vulnerability 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.
CVSS Metrics
Common Vulnerability Scoring System
Vector String:
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector
N
Attack Complexity
H
Privileges Required
N
User Interaction
N
Scope
U
Confidentiality
N
Integrity
N
Availability
L
Severity Details
3.7
out of 10.0
Low
Key Information
- Published Date
- January 14, 2026
