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nodejs2shell - Critical Vulnerabilities - 20261026001

Overview

The WASOC has observed new updates published by GitHub and Node.js addressing critical vulnerabilities affecting the Brotli decoder, collectively known as "nodejs2shell". Successful exploitation can expose applications to unauthenticated remote code execution, memory disclosure and denial of service.

What is vulnerable?

Product(s) Affected Version(s) CVE CVSS Severity
Google Brotli
Node.js
- 1.0.3 to 1.2.0
- Node.js 26.x, 24.x, 22.x
CVE-2026-111497 9.2 Critical

What has been observed?

The WA SOC has not received any reports of exploitation of this vulnerability on Western Australian Government networks at the time of writing.

Recommendation

The WASOC recommends administrators apply the solutions as per vendor instructions to all affected devices within expected timeframes (refer Patch Management):

Additional Resources