CVE-2026-21636
An attacker can exploit multiple vulnerabilities in Node.js to bypass security precautions, manipulate data, disclose confidential information, or cause a denial-of-service condition.
CSIRTS triage
- What
- Multiple vulnerabilities allow an attacker to bypass security precautions and manipulate data.
- Who is affected
- Deployments of Node.js.
- Urgency
- Remediation is high urgency due to the potential for exploitation.
- Action
- Update to the latest version of Node.js.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.66% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 47% of all EPSS-scored CVEs.
Advisory coverage (2)
- high[UPDATE] [high] Node.js: Multiple vulnerabilitiescert-bund · 2026-07-09
- critical[UPDATE] [critical] Node.js: Multiple vulnerabilitiescert-bund · 2026-07-02
External references
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[](https://www.csirts.com/cve/CVE-2026-21636)