CVE-2023-38700 – matrix-appservice-irc

Package

Manager: npm
Name: matrix-appservice-irc
Vulnerable Version: >=0 <1.0.1

Severity

Level: Low

CVSS v3.1: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N

EPSS: 0.00266 pctl0.49847

Details

matrix-appservice-irc events can be crafted to leak parts of targeted messages from other bridged rooms ### Impact It was possible to craft an event such that it would leak part of a targeted message event from another bridged room. This required knowing an event ID to target. ### Patches Please upgrade to 1.0.1. ### Workarounds You can set the `matrixHandler.eventCacheSize` config value to `0` to workaround this bug. However, this may impact performance. ### Credits Discovered and reported by [Val Lorentz](https://valentin-lorentz.fr/). ### For more information If you have any questions or comments about this advisory email us at [security@matrix.org](mailto:security@matrix.org).

Metadata

Created: 2023-08-04T17:26:07Z
Modified: 2023-08-04T17:26:07Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/08/GHSA-c7hh-3v6c-fj4q/GHSA-c7hh-3v6c-fj4q.json
CWE IDs: ["CWE-200"]
Alternative ID: GHSA-c7hh-3v6c-fj4q
Finding: F038
Auto approve: 1