matrix-appservice-irc is an open source Node.js IRC bridge for Matrix. The Internet Relay Chat (IRC) protocol allows you to specify multiple modes in a single mode command. Due to a bug in the underlying matrix-org/node-irc library, affected versions of matrix-appservice-irc perform parsing of such modes incorrectly, potentially resulting in the wrong user being given permissions. Mode commands can only be executed by privileged users, so this can only be abused if an operator is tricked into running the command on behalf of an attacker. The vulnerability has been patched in matrix-appservice-irc 0.35.0. As a workaround users should refrain from entering mode commands suggested by untrusted users. Avoid using multiple modes in a single command.
History

Wed, 23 Apr 2025 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2022-09-13T18:10:15.000Z

Updated: 2025-04-23T17:11:14.546Z

Reserved: 2022-09-02T00:00:00.000Z

Link: CVE-2022-39202

cve-icon Vulnrichment

Updated: 2024-08-03T12:00:42.578Z

cve-icon NVD

Status : Modified

Published: 2022-09-13T18:15:15.413

Modified: 2024-11-21T07:17:46.700

Link: CVE-2022-39202

cve-icon Redhat

No data.