EUVD-2025-9629

Malicious code in bioql PyPI...

Next.js may leak x-middleware-subrequest-id to external hosts

Summary In the process of remediating CVE-2025-29927, we looked at other possible exploits of Middleware. We independently verified this low severity vulnerability in parallel with two reports from independent researchers. Learn more here. Credit Thank you to Jinseo Kim kjsman and RyotaK GMO Flat...

CVE-2025-30218 Next.js may leak x-middleware-subrequest-id to external hosts

Next.js is a React framework for building full-stack web applications. To mitigate CVE-2025-29927, Next.js validated the x-middleware-subrequest-id which persisted across multiple incoming requests. However, this subrequest ID is sent to all requests, even if the destination is not the same host ...