Matrix IRC Bridge truncated content of messages can be leaked
Impact
The matrix-appservice-irc before version 2.0.0 can be exploited to leak the truncated body of a message if a malicious user sends a Matrix reply to an event ID they don't have access to. As a precondition to the attack, the malicious user needs to know the event ID of the message they want to leak, as well as to be joined to both the Matrix room and the IRC channel it is bridged to.
The message reply containing the leaked message content is visible to IRC channel members when this happens.
Patches
matrix-appservice-irc 2.0.0 checks whether the user has permission to view an event before constructing a reply. Administrators should upgrade to this version.
Workarounds
It's possible to limit the amount of information leaked by setting a reply template that doesn't contain the original message. See these lines in the configuration file.
References
https://github.com/matrix-org/matrix-appservice-irc/pull/1799
For more information
If you have any questions or comments about this advisory, please email us at security at matrix.org.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Paquete de npm | matrix-appservice-irc | < 2.0.0 | 2.0.0 |
Referencias
- https://github.com/matrix-org/matrix-appservice-irc/security/advisories/GHSA-wm4w-7h2q-3pf7
- https://nvd.nist.gov/vuln/detail/CVE-2024-32000
- https://github.com/matrix-org/matrix-appservice-irc/pull/1799
- https://github.com/matrix-org/matrix-appservice-irc/commit/4af7d3009f10b1f2fb810784c1e491d9d3bee82b
- https://github.com/matrix-org/matrix-appservice-irc
- https://github.com/matrix-org/matrix-appservice-irc/blob/d5d67d1d3ea3f0f6962a0af2cc57b56af3ad2129/config.sample.yaml#L601-L604
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N- Debilidad (CWE)
CWE-280- Plataforma
- npm
- Paquete
matrix-appservice-irc- Publicada
- 11.04.2024
- Actualizado
- 11.10.2026 10:22
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-wm4w-7h2q-3pf7 - CC BY 4.0
Historial de vulnerabilidades: matrix-appservice-irc
Todas las vulnerabilidades publicadas de este paquete (Paquete de npm), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 9
- Primera → última
- 05.2022 02.2025
- Sin corrección
- 0
- Explotada en ataques
- 0
Distribución por gravedad
- Alta 2
- Media 5
- Baja 2
Divulgaciones por año
- 2022: 4
- 2023: 2
- 2024: 2
- 2025: 1
- 2026: 0
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Matrix IRC Bridge truncated content of messages can be leaked esta entrada
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