| Package | Affected versions | Patched versions |
|---|---|---|
| com.neovisionaries:nv-websocket-client | < 2.1 | 2.1 |
| nv-websocket-client | ≤ 2.2 |
The Java WebSocket client nv-websocket-client does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL/TLS servers via an arbitrary valid certificate.
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