CVE-2026-58045

nodejs / node PUBLISHED

Description (CNA)

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**.

Affected (CNA)

Vendor / product	Versions
nodejs / node	affected 26.5.0 through 26.5.0; affected 24.18.0 through 24.18.0; affected 22.23.1 through 22.23.1

CWE

CWE-400

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.