matrix-appservice-irc is a Node.js IRC bridge for Matrix. The vulnerability in node-irc allows an attacker to manipulate a Matrix user into executing IRC commands by having them reply to a maliciously crafted message. The vulnerability has been patched in matrix-appservice-irc 0.33.2. Refrain from replying to messages from untrusted participants in IRC-bridged Matrix rooms. There are no known workarounds for this issue.
Use CWE-74, Matrix vendor hub and Matrix Irc Bridge product page to widen CVE-2022-29166 into its surrounding weakness, vendor, and product context.
Compare it with CVE-2022-39203, CVE-2023-38690 and CVE-2022-3971 for nearby disclosures in the same product family.