VULNERABILITY INTELLIGENCE
CVE-2023-38700
CVSS score3.5 LOW
EPSS probability0.60%
CISA KEVNot currently listed
Published2023-08-04
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
Description
matrix-appservice-irc is a Node.js IRC bridge for Matrix. Prior to version 1.0.1, 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. Version 1.0.1n fixes this issue. As a workaround, set the `matrixHandler.eventCacheSize` config value to `0`. This workaround may impact performance.
Weakness classification
- security-advisories@github.com: CWE-200
- nvd@nist.gov: NVD-CWE-noinfo
Primary references
- security-advisories@github.com — Patch
- security-advisories@github.com — Release Notes
- security-advisories@github.com — Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch
- af854a3a-2127-422b-91ae-364da2661108 — Release Notes
- af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory