VULNERABILITY INTELLIGENCE

CVE-2022-29166

CVSS score8 HIGH

EPSS probability1.00%

CISA KEVNot currently listed

Published2022-05-05

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Description

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.

Weakness classification

CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Primary references

security-advisories@github.com — Third Party Advisory
security-advisories@github.com — Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Release Notes, Vendor Advisory