Matrix IRC Bridge allows IRC command injection to own puppeted user

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

• GHSA-5mvm-89c9-9gm5
• CVE-2025-27146
• CWE-77
• CWE-88
• CAPEC-310
• OWASP 2021-A3
• OWASP 2021-A6

Related Issues

• matrix-appservice-irc IRC command injection via admin commands containing newlines - CVE-2023-38690
• Matrix-appservice-irc vulnerable to sql injection via roomIds argument - CVE-2022-3971
• Matrix IRC Bridge truncated content of messages can be leaked - CVE-2024-32000
• tarteaucitron.js allows UI manipulation via unrestricted CSS injection - CVE-2025-31138

Tags:

npm

matrix-appservice-irc