SEPTEMBER 19, 2026
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Case File

CVE-2026-58045

MEDIUM · CVSS 6.2 EPSS 0.17% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-04 · Last synced 2026-09-03

CyberRota Analysis

AI-Generated

A flaw in Node.js allows a crafted `TypedArray` `byteLength` to trigger an assertion failure in the synchronous `node:zlib` APIs, leading to potential process crashes. This vulnerability affects all 11 synchronous zlib functions and can be exploited to cause a denial of service. Organizations using Node.js versions 22.x, 24.x, or 26.x should prioritize remediation to mitigate service disruptions.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

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CVE
CVE-2026-58045
Severity
MEDIUM
CVSS
6.2
EPSS
0.17%

Original NVD 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**.