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CVE-2022-29166

HIGH
Published 2022-05-05T23:05:14.000Z
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CVSS Score

V3.1
8.0
/10
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.008
probability
of exploitation in the wild

There is a 0.8% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.737
Higher than 73.7% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED

Impact Metrics

Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

matrix-org

matrix-appservice-irc

Affected Versions:

< 0.34.0

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

✓ GitHub Reviewed HIGH

Improper handling of multiline messages in node-irc affects matrix-appservice-irc

GHSA-37hr-348p-rmf4

Advisory Details

matrix-appservice-irc provides an 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. In terms of a workaround, users should refrain from replying to messages from untrusted participants in IRC-bridged Matrix rooms.

Affected Packages

npm matrix-appservice-irc
ECOSYSTEM: ≥0 <0.33.2

CVSS Scoring

CVSS Score

7.5

CVSS Vector

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

References

WEB https://github.com/matrix-org/matrix-appservice-irc/security/advisories/GHSA-37hr-348p-rmf4
WEB https://github.com/matrix-org/node-irc/security/advisories/GHSA-52rh-5rpj-c3w6
ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2022-29166
PACKAGE https://github.com/matrix-org/matrix-appservice-irc
WEB https://matrix.org/blog/2022/05/04/0-34-0-security-release-for-matrix-appservice-irc-high-severity

Advisory provided by GitHub Security Advisory Database. Published: May 23, 2022, Modified: May 23, 2022

References

https://github.com/matrix-org/matrix-appservice-irc/security/advisories/GHSA-37hr-348p-rmf4
https://matrix.org/blog/2022/05/04/0-34-0-security-release-for-matrix-appservice-irc-high-severity
Published: 2022-05-05T23:05:14.000Z
Last Modified: 2025-04-23T18:30:37.402Z
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