USN-9056-1: Prosody Community Modules vulnerability

Publication date

11 November 2026

Overview

Prosody Community Modules could be made to grant administrator privileges to an attacker.


Packages

Details

It was discovered that the LDAP authentication modules in Prosody Community
Modules did not fully verify XMPP addresses when checking for administrator
privileges. A remote attacker could possibly use this issue to gain
administrator privileges.

It was discovered that the LDAP authentication modules in Prosody Community
Modules did not fully verify XMPP addresses when checking for administrator
privileges. A remote attacker could possibly use this issue to gain
administrator privileges.

Update instructions

After a standard system update you need to restart Prosody to make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
18.04 LTS bionic prosody-modules –  0.0~hg20170929.c53cc1ae4788+dfsg-3ubuntu0.1~esm1  
16.04 LTS xenial prosody-modules –  0.0~hg20150813.12ac88940fe3-2ubuntu0.1~esm1

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.


Have additional questions?

Talk to a member of the team ›