CVE-2025-27146

Matrix IRC Bridge allows IRC command injection to own puppeted user

Description

matrix-appservice-irc is a Node.js IRC bridge for Matrix. 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. The vulnerability has been patched in matrix-appservice-irc version 3.0.4.

Category

2.7
CVSS
Severity: Low
CVSS 3.1 •
EPSS 0.04%
Vendor Advisory github.com
Affected: matrix-org matrix-appservice-irc
Published at:
Updated at:

References

Link Tags
https://github.com/matrix-org/matrix-appservice-irc/security/advisories/GHSA-5mvm-89c9-9gm5 vendor advisory
https://github.com/matrix-org/matrix-appservice-irc/commit/74f02c8e11f16ed1b355700092c1aa9c036a11bd patch

Frequently Asked Questions

What is the severity of CVE-2025-27146?
CVE-2025-27146 has been scored as a low severity vulnerability.
How to fix CVE-2025-27146?
To fix CVE-2025-27146, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-27146 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-27146 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-27146?
CVE-2025-27146 affects matrix-org matrix-appservice-irc.
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