CVE-2025-54315
The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event...
The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event uniqueness.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event uniqueness.
- Record
CVE-2025-54315- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L - Weakness
- CWE-837
- Updated
- 2026-11-02
EUVDEUVD-2025-32574
The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event uniqueness.
- Record
EUVD-2025-32574- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-j8g5-8x38-5xqp
The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event...
The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event uniqueness.
- Record
GHSA-j8g5-8x38-5xqp- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L - Weakness
- CWE-837
- Updated
- 2026-11-02
NVD
The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event uniqueness.
- Record
CVE-2025-54315- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L - Weakness
- CWE-837
- Updated
- 2026-11-02
OSV
The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event uniqueness.
- Record
CVE-2025-54315- CVSS 3.1
- 7.1 High
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L - Weakness
- CWE-837
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-54315 is a high vulnerability (CVSS 7.1) in Matrix Specification, published October 2, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.34%, the 27th percentile. No source names a fixed version.