VULNERABILITY INTELLIGENCE
CVE-2026-58045
CVSS score6.2 MEDIUM
EPSS probability0.17%
CISA KEVNot currently listed
Published2026-08-04
Last modified2026-10-23
CVSS vectorCVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
A flaw in Node.js allows a spoofed `TypedArray` `byteLength` to trigger a reachable assertion in the synchronous `node:zlib` APIs, causing the entire process to crash. All 11 synchronous zlib functions are affected. Repeated exploitation of this condition can result in a denial of service. This vulnerability affects Node.js **22.x**, **24.x**, and **26.x**.
Weakness classification
- support@hackerone.com: CWE-400