Input validation error in Node.js - CVE-2026-58045
Published: July 29, 2026 / Updated: July 29, 2026
Vulnerability identifier: #VU140045
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-58045
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Affected software:
Node.js
Node.js
Detailed vulnerability description
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to improper input validation in the synchronous node:zlib APIs when processing a spoofed TypedArray byteLength. A local user can supply a crafted TypedArray value to cause a denial of service.
Repeated exploitation of this condition can crash the process.
How to mitigate CVE-2026-58045
Install security update from vendor's website.