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.
Published 2023-08-04 19:15:10
Updated 2023-08-11 18:58:44
Source GitHub, Inc.
View at NVD,   CVE.org
Vulnerability category: Information leak

Exploit prediction scoring system (EPSS) score for CVE-2023-38700

0.05%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 18 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-38700

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
3.7
LOW CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
2.2
1.4
NIST
3.5
LOW CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
1.8
1.4
GitHub, Inc.

CWE ids for CVE-2023-38700

References for CVE-2023-38700

Products affected by CVE-2023-38700

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