Description
The matrix-appservice-irc bridge up to version 3.0.3 contains a vulnerability which can lead to arbitrary IRC command execution as the puppeted user. The attacker can only inject commands executed as their own IRC user.
Recommendation
Update the matrix-appservice-irc package to the latest compatible version. Followings are version details:
- Affected version(s): < 3.0.4
- Patched version(s): 3.0.4
References
Could your website be exposed too?
SmartScanner can check your website for Matrix IRC Bridge allows IRC command injection to own puppeted user and gives you actionable findings to investigate.
Start a free scanRelated Issues
- matrix-appservice-irc IRC command injection via admin commands containing newlines - CVE-2023-38690
- Matrix IRC Bridge truncated content of messages can be leaked - CVE-2024-32000
- Matrix-appservice-irc vulnerable to sql injection via roomIds argument - CVE-2022-3971
- MCPHub's ServerController is vulnerable to Command Injection - CVE-2025-11285


