Improper handling of multiline messages in node-irc

published 2022-05-05 4y ago modified 2026-02-11 9mo ago

cvss: 8.0; version 3.1, GitHub
cisa kev: Not listed; not in CISA's catalog
epss: —; no score, EPSS covers CVEs only
public exploits: 0; none known

node-irc is a socket wrapper for the IRC protocol that extends Node.js' EventEmitter. The vulnerability allows an attacker to manipulate a Matrix user into executing IRC commands by having them reply to a maliciously crafted message. Incorrect handling of a CR character allowed for making part of the message be sent to the IRC server verbatim rather than as a message to the channel. The vulnerability has been patched in node-irc version 1.2.1.

Patch / fix

fixed in 1 links 2

npm matrix-org-irc 1.2.1

github.com/matrix-org/node-irc@2976c85 commit
github.com/matrix-org/node-irc@e3eb9c1 commit

Is GHSA-52rh-5rpj-c3w6 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CVSS scores

assigned by	version	score	vector
GitHub	3.1	8.0	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Affected packages

ecosystem	package	affected	fixed in
npm	matrix-org-irc	<1.2.1	1.2.1

Classification

Weakness

CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component
CWE-93 Improper Neutralization of CRLF Sequences

References

Sources

GitHub Advisory GHSA-52rh-5rpj-c3w6

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