CVE-2025-54315High· 7.1▾ TwilightThe Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event uniqueness.
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 39.1 · likelihood 0.1 · exploitation 0
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Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.3%
The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event uniqueness.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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