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Researchers Demonstrate Node2Shell RCE Exploit on Node.js Build Using Crafted Brotli Data

Summary by The Hacker News
Malicious Brotli data can make an application on an official build of Node.js run attacker-supplied code, security researchers at Imperva have demonstrated. Their "Node2Shell" proof of concept ran code on the official Node.js 24.22.0 image for Linux arm64, with no debugger or custom build, by feeding crafted data to the bundled Brotli decoder (CVE-2026-111497). Node.js disclosed the flaw
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In the world of web safety, new gaps represent increasing threats. In this article, RCE's exploitation of Node2Shell is reviewed on Node.js using designed Brotli data. Researchers show RCE's exploitation of Node2Shell based on Node.js using Brotli's design data. The security researchers at Imperva showed that Brotli's harmful data can be applied to an official building of Node.js... the RCE's exploitation of Node2Shell appeared in Node.js using …

One report attributes to OpenAI researchers the finding of Node2Shell, a fault in the Brotli decoder that could allow remote code execution. Node.js released security versions on October 21, 2026; their notice classifies vulnerability as high severity.

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The failure, identified as CVE-2026-111497, affects the processing of compressed data using Brotli and can compromise applications using Node.js or Bun. The finding was The post OpenAI discovers critical vulnerability in Brotli that allows running remote code on servers appeared first on .

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Node2Shell Vulnerability (CVE-2026-111497) allows remote code execution in Node.js. See the affected versions and how to fix the failure.

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IT Security News - cybersecurity, infosecurity news broke the news on Friday, October 23, 2026.
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