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CVE CVE-2026-58045

CVE-2026-58045

Node.js

Severity: MEDIUM
CVSS: 6.2CVSS
Published: 2026-08-04
Last modified: 2026-08-04
CVSS vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE: CWE-400

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

https://nodejs.org/en/blog/vulnerability/july-2026-security-releases

Summary

Description

References