CVE-2025-54315 is a high-severity vulnerability in the Matrix specification, affecting room versions prior to 1.16, where a lack of create event uniqueness could be exploited. This flaw carries a CVSS score of 7.1, indicating a high impact on integrity and low impact on availability, with a network attack vector and high attack complexity. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion and media coverage, including an article from CSO Online highlighting its potential to allow attackers to seize control of sensitive chat rooms.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Matrix | Matrix Specification | >= 0, < 1.16CNA affecteddefault unaffected |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:L
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.