Matrix Chat Shaken: High Severity Vulnerabilities Exposed!
Matrix users, brace yourselves! Two high severity protocol vulnerabilities, now addressed, require a breaking change in servers and clients. While it’s an awkward moment for a security-focused platform, don’t panic just yet. If you’re in a restricted federation, you can relax a bit more. But for open federations, patch ASAP to ensure secure chat.

Hot Take:
Matrix is the toddler in the chat protocol playground who just dropped its ice cream cone and is yelling “not fair!” at the other kids. They promise security and decentralization, but even the best-laid plans can end up with a face full of sprinkles. Don’t worry though, they’re mopping up the mess with a new version, v12, so users can play safe again! Just remember, when it comes to security, always check your playdates, and maybe pack an extra cone next time.
Key Points:
– Matrix identified two high severity protocol vulnerabilities, sparking a coordinated patch effort.
– The update, requiring a breaking change, is set for release on August 11, 2025, with additional updates following.
– Matrix is an open standard for real-time communication, not a chat platform, boasting a user base of 60 million.
– The vulnerabilities primarily affect open, unrestricted federations, while restricted federations face less risk.
– Server and client updates to Room Version 12 are essential for comprehensive protection against the vulnerabilities.