{"id":"CVE-2025-31127","aliases":["EUVD-2025-14784","GHSA-x2g5-f28j-p7w6"],"status":"published","title":"Element X Android allows the entity in control of the well-known file to break the confidentiality embedded Element Call","description":"Element X Android is a Matrix Android Client provided by element.io. In Element X Android versions between 0.4.16 and 25.03.3, the entity in control of the element.json well-known file is able, under certain conditions, to get access to the media encryption keys used for an Element Call call. This vulnerability is fixed in 25.03.4.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00204,"percentile":0.10486,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200"],"published":"2025-04-03T17:54:22Z","modified":"2026-10-28T02:30:50Z","products":[{"vendor":"element-hq","product":"element-x-android"}],"references":[{"url":"https://github.com/element-hq/element-x-android/security/advisories/GHSA-x2g5-f28j-p7w6","tags":["x_refsource_CONFIRM","advisory"]},{"url":"https://github.com/element-hq/element-meta/issues/2441","tags":["x_refsource_MISC","report"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/31xxx/CVE-2025-31127.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-31127","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2025-31127","title":"Element X Android allows the entity in control of the well-known file to break the confidentiality embedded Element Call","description":"Element X Android is a Matrix Android Client provided by element.io. In Element X Android versions between 0.4.16 and 25.03.3, the entity in control of the element.json well-known file is able, under certain conditions, to get access to the media encryption keys used for an Element Call call. This vulnerability is fixed in 25.03.4.","status":"published","published":"2025-04-03T17:54:22.695Z","modified":"2025-04-07T18:24:45.777Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:32:44.763463Z"}],"euvd":[{"id":"EUVD-2025-14784","description":"Element X Android is a Matrix Android Client provided by element.io. In Element X Android versions between 0.4.16 and 25.03.3, the entity in control of the element.json well-known file is able, under certain conditions, to get access to the media encryption keys used for an Element Call call. This vulnerability is fixed in 25.03.4.","status":"published","published":"2025-04-03T17:54:22Z","modified":"2025-04-07T18:24:45Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T20:52:41.16494Z"}],"nvd":[{"id":"CVE-2025-31127","description":"Element X Android is a Matrix Android Client provided by element.io. In Element X Android versions between 0.4.16 and 25.03.3, the entity in control of the element.json well-known file is able, under certain conditions, to get access to the media encryption keys used for an Element Call call. This vulnerability is fixed in 25.03.4.","status":"published","published":"2025-04-03T18:15:46.037Z","modified":"2026-06-17T09:09:54.253Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:10:58.094557Z"}],"osv":[{"id":"CVE-2025-31127","title":"Element X Android allows the entity in control of the well-known file to break the confidentiality embedded Element Call","description":"Element X Android is a Matrix Android Client provided by element.io. In Element X Android versions between 0.4.16 and 25.03.3, the entity in control of the element.json well-known file is able, under certain conditions, to get access to the media encryption keys used for an Element Call call. This vulnerability is fixed in 25.03.4.","status":"published","published":"2025-04-03T17:54:22.695Z","modified":"2026-10-28T02:30:50.6348935Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T15:44:48.02508Z"}]}}