Improper Certificate Validation Affecting nodejs package, versions [0,]
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CONAN-NODEJS-22479981
- published12 Nov 2026
- disclosed11 Nov 2026
- creditaur0r4_glyph
Introduced: 11 Nov 2026
NewCVE-2026-123867 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Overview
Affected versions of this package are vulnerable to Improper Certificate Validation in SNI context handling, where a per-host client CA set with server.addContext() without a server certificate is never installed and the handshake falls back to the default client CA. An attacker can reach a protected hostname by presenting a client certificate that the default CA trusts but the protected CA does not, which completes mutual TLS even with requestCert and rejectUnauthorized enabled. Only TLS servers that call server.addContext() with a ca option and no server certificate in the same context are affected.