HOMEVULNERABILITIESCVE-2022-29166
HIGH

CVE-2022-29166

CWE-74Published: May 5, 2022· Updated: Jun 17, 2026

8.8
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2022-29166 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

matrix1 product(s)
matrix irc bridge
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://github.com/matrix-org/matrix-appservice-irc/security/advisories/GHSA-37hr-348p-rmf4
ADVISORYhttps://matrix.org/blog/2022/05/04/0-34-0-security-release-for-matrix-appservice-irc-high-severity
ADVISORYhttps://github.com/matrix-org/matrix-appservice-irc/security/advisories/GHSA-37hr-348p-rmf4
ADVISORYhttps://matrix.org/blog/2022/05/04/0-34-0-security-release-for-matrix-appservice-irc-high-severity

All References (4)

→
https://github.com/matrix-org/matrix-appservice-irc/security/advisories/GHSA-37hr-348p-rmf4Third Party Advisory
→
https://matrix.org/blog/2022/05/04/0-34-0-security-release-for-matrix-appservice-irc-high-severityRelease Notes · Vendor Advisory
→
https://github.com/matrix-org/matrix-appservice-irc/security/advisories/GHSA-37hr-348p-rmf4Third Party Advisory
→
https://matrix.org/blog/2022/05/04/0-34-0-security-release-for-matrix-appservice-irc-high-severityRelease Notes · Vendor Advisory

Quick Facts

CVE IDCVE-2022-29166
CVSS Score8.8 / 10
SeverityHIGH
WeaknessCWE-74
CISA KEVNo
Affected1 vendor(s)
PublishedMay 5, 2022

Related CVEs (CWE-74)

CVE-2024-42472
10.0
CVE-2022-24760
10.0
CVE-2023-32314
10.0
CVE-2020-26282
10.0
CVE-2026-44182
10.0
CVE-2014-8423
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2022-29166 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2022-29166·NVD