What is GHSA-4j79-vxj3-vjvm?

GHSA-4j79-vxj3-vjvm is a security advisory published by GitHub Security Advisories with Medium severity. A flaw in Node.js allows a spoofed `TypedArray` `byteLength` to trigger a reachable assertion in...

Which CVE IDs does GHSA-4j79-vxj3-vjvm cover?

GHSA-4j79-vxj3-vjvm covers the following CVE IDs: CVE-2026-58045. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-4j79-vxj3-vjvm?

GHSA-4j79-vxj3-vjvm has a CVSS v3 base score of 6.2, published by GitHub Security Advisories.

GHSA-4j79-vxj3-vjvmMediumCVSS 6.2

A flaw in Node.js allows a spoofed `TypedArray` `byteLength` to trigger a reachable assertion in...

Vendor

GitHub Security Advisories

Published

August 4, 2026

Last Modified

August 4, 2026

🔗 CVE IDs covered (1)

CVE-2026-58045 →

📋 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.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-58045
https://nodejs.org/en/blog/vulnerability/july-2026-security-releases
https://github.com/advisories/GHSA-4j79-vxj3-vjvm