{"id":"CVE-2023-38700","state":"PUBLISHED","title":"matrix-appservice-irc events can be crafted to leak parts of targeted messages from other bridged rooms","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.","publishedAt":"2023-08-04T18:05:43.187Z","updatedAt":"2024-10-03T18:08:51.929Z","severity":{"score":3.5,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["matrix-org matrix-appservice-irc"],"affected":[{"vendor":"matrix-org","product":"matrix-appservice-irc","versions":[{"version":"< 1.0.1","status":"affected"}]}],"references":["https://github.com/matrix-org/matrix-appservice-irc/security/advisories/GHSA-c7hh-3v6c-fj4q","https://github.com/matrix-org/matrix-appservice-irc/commit/8bbd2b69a16cbcbeffdd9b5c973fd89d61498d75","https://github.com/matrix-org/matrix-appservice-irc/releases/tag/1.0.1"],"weaknesses":["CWE-200"],"ingestedAt":"2026-10-29T20:06:08.715Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/38xxx/CVE-2023-38700.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2023-38700","state":"PUBLISHED","datePublished":"2023-08-04T18:05:43.187Z","dateUpdated":"2024-10-03T18:08:51.929Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2023-07-24T16:19:28.365Z"},"containers":{"cna":{"title":"matrix-appservice-irc events can be crafted to leak parts of targeted messages from other bridged rooms","descriptions":[{"lang":"en","value":"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`. 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