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Vulnerability Intelligence

Vulnerability IntelligenceCVE-2025-54315

CVE-2025-54315

HIGH7.1

The Matrix specification before 1

Published Oct 2, 2025

Modified 5 months ago

Details

The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event uniqueness.

References

https://github.com/matrix-org/matrix-spec/releases/tag/v1.16

https://matrix.org/blog/2025/08/project-hydra-improving-state-res/

https://www.cve.org/CVERecord?id=CVE-2025-54315

CVSS Analysis

CVSS v3.1

7.1

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

HighAC:H

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

Scope

ChangedS:C

Impact

Confidentiality

NoneC:N

Integrity

HighI:H

Availability

LowA:L

7.1/CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L

Weakness Type (CWE)

Other

Ecosystems

Timeline

PublishedOct 2, 2025

ModifiedOct 2, 2025

CVE-2025-54315 | Mondoo Vulnerability Intelligence