Uncaught Exception

Overview Affected versions of this package are vulnerable to Uncaught Exception in the TLS module when a SNICallback throws synchronously on unexpected input the exception bypasses TLS error handlers and propagates as an uncaught exception. A remote attacker can crash or exhaust resources of a TL...

Node.js: Incomplete fix for CVE-2026-21637: loadSNI() in _tls_wrap.js lacks try/catch leading to Remote DoS

A flaw was discovered in the Node.js TLS error handling that left SNICallback invocations unprotected against synchronous exceptions. This represented an incomplete fix of the prior CVE-2026-21637 vulnerability, where the equivalent ALPN and PSK callbacks were already addressed. The issue could...