CVE-2025-54315

HIGH

Published Oct 2, 2025 Modified Apr 15, 2026 CWE-837

Description

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

Is your site exposed to CVE-2025-54315?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

7.1

HIGH

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

Weakness Type (CWE)

CWE-837 CWE-837

References

Other References

https://github.com/matrix-org/matrix-spec/releases/tag/v1.16 https://matrix.org/blog/2025/08/project-hydra-improving-state-res/

Frequently Asked Questions

What is CVE-2025-54315? +

The Matrix specification before 1.16 (i.e., with a room version before 12) lacks create event uniqueness. It has a CVSS v3.1 base score of 7.1 (HIGH).

How severe is CVE-2025-54315? +

CVE-2025-54315 has a CVSS v3.1 score of 7.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

How do I check if I'm vulnerable to CVE-2025-54315? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2024-11717

Tokens in CTFd used for account activation and password resetting can be used interchangeably for these operations. When used, they …

CVE-2024-12123

A hidden field manipulation vulnerability was identified in Issuetrak version 17.1 that could be triggered by an authenticated user. When …

CVE-2024-11716

While assignment of a user to a team (bracket) in CTFd should be possible only once, at the registration, a …

CVE-2026-105850

Payload is a free and open source headless content management system. In @payloadcms/plugin-ecommerce versions before 3.90.0 and canary versions before …

CVE-2026-42609 8.1

Grav is a file-based Web platform. Prior to 2.0.0-beta.2, a business logic vulnerability in the Grav Admin Panel allows a …

CVE-2024-4629 6.5

A vulnerability was found in Keycloak. This flaw allows attackers to bypass brute force protection by exploiting the timing of …