CVE-2022-29166

    Dashboard / Vulnerabilities / CVE-2022-29166

    CVE-2022-29166

    Published: 5 May 2022Last Modified: 12 Aug 2026

    Summary: Improper handling of multiline messages in matrix-appservice-irc

    Details: 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.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/29xxx/CVE-2022-29166.json, https://github.com/matrix-org/matrix-appservice-irc/security/advisories/GHSA-37hr-348p-rmf4, https://nvd.nist.gov/vuln/detail/CVE-2022-29166, https://matrix.org/blog/2022/05/04/0-34-0-security-release-for-matrix-appservice-irc-high-severity

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -8faf9614e80073e3cf07c96dbd295379d80f4161

    Affected versions

    0.32.1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2022-29166 | CVE-DB