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View CSAF Summary On October 21, 2026, the Node.js project released security updates addressing a critical vulnerability in the Brotli decoder bundled with Node.js, commonly referred to as "Node2Shell" (tracked as CVE-2026-111497). The vulnerability is an out-of-bounds write that could allow a remote attacker to cause memory corruption and potentially execute arbitrary code.
Summary from CISA Advisories.
Explained
The technology and terms in this story. Learn more
- WeaknessMemory corruptionBugs that let a program write where it shouldn't in memory, often leading to code execution.
- ConceptCVSS · Common Vulnerability Scoring SystemA 0–10 score for how severe a vulnerability is in theory.
- ConceptCVE · Common Vulnerabilities and ExposuresThe public ID system for vulnerabilities, such as CVE-2026-12345, so everyone means the same bug.
Why it was possible
The weaknesses behind this story's CVEs, from each CVE Record.
Vulnerabilities in this story
Severity and exploitation facts from NVD, FIRST, and CISA.
Related coverage
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