CVE-2022-39203: matrix irc bridge

csirt@kutim:~/threat-intel/cve/CVE-2022-39203

CVSS 8.8 · High EPSS 0,86%

Kerentanan Improper Privilege Management pada matrix irc bridge. Skor CVSS 3.1 8.8 (High) menurut NVD.

Deskripsi (NVD)

matrix-appservice-irc is an open source Node.js IRC bridge for Matrix. Attackers can specify a specific string of characters, which would confuse the bridge into combining an attacker-owned channel and an existing channel, allowing them to grant themselves permissions in the channel. The vulnerability has been patched in matrix-appservice-irc 0.35.0. As a workaround operators may disable dynamic channel joining via `dynamicChannels.enabled` to prevent users from joining new channels, which prevents any new channels being bridged outside of what is already bridged, and what is specified in the config.

Rincian

Terbit di NVD: 13 September 2022
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 8.8 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-269: Improper Privilege Management
EPSS (30 hari): 0,86% peluang dieksploitasi; lebih tinggi dari 57,5% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
matrix	matrix irc bridge	Semua versi sebelum 0.35.0

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://matrix.org/blog/2022/09/13/security-release-of-matrix-appservice-irc-0-35-0-high-severity/ advisory vendor
https://github.com/matrix-org/matrix-appservice-irc/security/advisories/GHSA-xvqg-mv25-rwvw mitigasi · advisory pihak ketiga

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.