CVE Tools
Sign in

CVE-2022-29166

Improper handling of multiline messages in matrix-appservice-irc

Published: May 5, 2022Updated: Nov 21, 2024 Sources: CVE List NVD GHSACWE-74
8.0HIGH
NVD MITRE
EPSS Score
1.0%
Top 41.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:RS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-74

Affected Products

matrix
oss-project·GBaka synapse, javascript sdk, matrix irc bridge
matrix irc bridgeOn-prem
Communications / messaging-chat
npm
package-ecosystem
matrix-appservice-irc
OSS Libraries
matrix-org
oss-project·DEaka matrix-js-sdk, matrix appservice irc, synapse
matrix-appservice-ircOn-prem
Communications / messaging-chat

Exploitability

Official Patch Available
Is your org exposed to CVE-2022-29166?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/matrix-org/matrix-appservice-irc/security/advisories/GHSA-37hr-348p-rmf4
github.com
https://matrix.org/blog/2022/05/04/0-34-0-security-release-for-matrix-appservice-irc-high-severity
matrix.org
https://github.com/matrix-org/node-irc/security/advisories/GHSA-52rh-5rpj-c3w6
github.com
and 2 more references View all →

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2022-29166 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows