MEDIUM 6.2 NVD

CVE-2026-58045

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

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

Published: 2026-08-04 · Source: NVD · Feed updated: 2026-08-04

This medium severity vulnerability with a CVSS score of 6.2 was published on 2026-08-04 via NVD.

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