CVE-2016-7143
The m_authenticate function in modules/m_sasl.c in Charybdis before 3.5.3 allows remote attackers to spoof certificate fingerprints and consequently log in as another user via a crafted AUTHENTICATE parameter.
Date published : 2016-09-21
http://www.securityfocus.com/bid/92761
https://github.com/charybdis-ircd/charybdis/blob/charybdis-3.5.3/NEWS.md