{"id":"CVE-2025-54315","aliases":["EUVD-2025-32574","GHSA-j8g5-8x38-5xqp"],"status":"published","title":"The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event...","description":"The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event uniqueness.","severity":{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00352,"percentile":0.29268,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-837"],"published":"2025-10-02T00:00:00Z","modified":"2026-10-28T02:31:13Z","products":[{"vendor":"matrix","product":"matrix specification"}],"references":[{"url":"https://github.com/matrix-org/matrix-spec/releases/tag/v1.16","tags":["web"]},{"url":"https://matrix.org/blog/2025/08/project-hydra-improving-state-res/","tags":["article"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-54315","tags":["advisory"]},{"url":"https://matrix.org/blog/2025/08/project-hydra-improving-state-res"},{"url":"https://github.com/advisories/GHSA-j8g5-8x38-5xqp"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/54xxx/CVE-2025-54315.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2025-54315","description":"The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event uniqueness.","status":"published","published":"2025-10-02T00:00:00Z","modified":"2025-10-02T19:33:55.972Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L","level":"high","assessor":"cna"}],"cwes":["CWE-837"],"updated_at":"2026-11-02T14:32:27.603809Z"}],"euvd":[{"id":"EUVD-2025-32574","description":"The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event uniqueness.","status":"published","published":"2025-10-02T00:00:00Z","modified":"2025-10-02T19:33:55Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L","level":"high"}],"updated_at":"2026-11-02T20:31:36.727084Z"}],"ghsa":[{"id":"GHSA-j8g5-8x38-5xqp","title":"The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event...","description":"The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event uniqueness.","status":"published","published":"2025-10-02T21:31:19Z","modified":"2025-10-02T21:31:24Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L","level":"high"}],"cwes":["CWE-837"],"updated_at":"2026-11-02T15:03:50.770325Z"}],"nvd":[{"id":"CVE-2025-54315","description":"The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event uniqueness.","status":"published","published":"2025-10-02T19:15:31.477Z","modified":"2026-10-12T15:10:00.207Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L","level":"high","assessor":"secondary"}],"cwes":["CWE-837"],"updated_at":"2026-11-02T14:11:34.090044Z"}],"osv":[{"id":"CVE-2025-54315","description":"The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event uniqueness.","status":"published","published":"2025-10-02T00:00:00Z","modified":"2026-10-28T02:31:13.288744212Z","cvss":[{"version":"3.1","score":7.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L","level":"high"}],"cwes":["CWE-837"],"updated_at":"2026-11-02T15:44:50.863921Z"}]}}