Pidgin · Pidgin · CVE-2010-0420
**Name of the Vulnerable Software and Affected Versions**
Pidgin versions prior to 2.6.6
**Description**
The issue is related to the parsing of nicknames in XMPP multi-user chat rooms. When a nickname contains a specific sequence, it can cause the application to crash, resulting in a denial of service. This is due to the improper parsing of nicknames containing `<br>` sequences.
**Recommendations**
For versions prior to 2.6.6, update to version 2.6.6 or later to resolve the issue. As a temporary workaround, consider restricting the use of nicknames containing `<br>` sequences in XMPP multi-user chat rooms to minimize the risk of exploitation.