Colloquy » Colloquy : Security Vulnerabilities, CVEs,

Multiple format string vulnerabilities in (1) _invitedToRoom: and (2) _invitedToDirectChat: in Colloquy 2.1 and earlier allow remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via format string specifiers in the channel name of an INVITE request, related to the implementation of AlertSheet and AlertPanel in Apple AppKit.