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Security

If you find a security vulnerability in Node.js, please report it to [email protected]. Please withhold public disclosure until after the security team has addressed the vulnerability.

The security team will acknowledge your email within 24 hours. You will receive a more detailed response within 48 hours.

There are no hard and fast rules to determine if a bug is worth reporting as a security issue. Here are some examples of past issues and what the Security Response Team thinks of them. When in doubt, please do send us a report nonetheless.

Public disclosure preferred

  • #14519: Internal domain function can be used to cause segfaults. Requires the ability to execute arbitrary JavaScript code. That is already the highest level of privilege possible.

Private disclosure preferred

  • CVE-2016-7099: Fix invalid wildcard certificate validation check. This was a high-severity defect. It caused Node.js TLS clients to accept invalid wildcard certificates.

  • #5507: Fix a defect that makes the CacheBleed Attack possible. Many, though not all, OpenSSL vulnerabilities in the TLS/SSL protocols also affect Node.js.

  • CVE-2016-2216: Fix defects in HTTP header parsing for requests and responses that can allow response splitting. This was a remotely-exploitable defect in the Node.js HTTP implementation.

When in doubt, please do send us a report.