CVE-2025-54315
High
Description
The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event uniqueness.
SeverityHigh
CVSS7.1
Exploit probability—
ProductMatrix specification
PublishedOct 2, 2025
First seenOct 2, 2025
Weakness typeCWE-837CWE-837
How to fix
Update
- Matrix Matrix specification1.16 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Matrix Matrix specification | v < 1.16 | 1.16 |
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