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CVE CVE-2026-22036

CVE-2026-22036

Node.js

Severity: MEDIUM
CVSS: 5.9CVSS
Published: 2026-01-14
Last modified: 2026-01-22
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE: CWE-770

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.

References

https://github.com/nodejs/undici/commit/b04e3cbb569c1596f86c108e9b52c79d8475dcb3
https://github.com/nodejs/undici/security/advisories/GHSA-g9mf-h72j-4rw9

Summary

Description

References