CVE-2025-27146

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.
Command Injection
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
2.7 LOW
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
GitHub_MCNA
2.7 LOW
NETWORK
LOW
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
CISA-ADPADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 11%
VendorProductVersion
matrixmatrix_irc_bridge
𝑥
< 3.0.4
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://github.com/matrix-org/matrix-appservice-irc/commit/74f02c8e11f16ed1b355700092c1aa9c036a11bd
https://github.com/matrix-org/matrix-appservice-irc/security/advisories/GHSA-5mvm-89c9-9gm5