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TLS certificate validation error in Mellium

Description

In Mellium mellium.im/xmpp through 0.21.0, an attacker capable of spoofing DNS TXT records can redirect a WebSocket connection request to a server under their control without causing TLS certificate verification to fail. This occurs because the wrong host name is selected during this verification.


Affected Software


CPE Name Name Version
mellium.im/xmpp 0.21.1

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