CVE-2019-10044

Telegram Desktop before 1.5.12 on Windows, and the Telegram applications
for Android, iOS, and Linux, is vulnerable to an IDN homograph attack when
displaying messages containing URLs. This occurs because the application
produces a clickable link even if (for example) Latin and Cyrillic
characters exist in the same domain name, and the available font has an
identical representation of characters from different alphabets.

Bugs

• <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=927711&gt;