Recently, a significant server-side request forgery (SSRF) vulnerability was identified in Gradio, an open-source Python package used for rapid prototyping. This flaw, known as CVE-2026-28416, empowers attackers to execute arbitrary HTTP requests from the server hosting the vulnerable application.
Prior to version 6.6.0 of Gradio, an attacker could exploit this vulnerability by hosting a malicious Gradio Space. When a compromised application executes the gr.load() function to load this space, the malicious proxy_url is considered trusted. This setup allows the attacker access to sensitive internal services and private networks through the server’s infrastructure.
For system administrators, hosting providers, and web server operators, this vulnerability is a wake-up call. It underscores the need for robust server security and proactive malware detection. The potential for attackers to gain unauthorized access to internal resources poses serious risks, including data breaches and service disruptions. Additionally, monitoring for brute-force attacks targeting vulnerable applications is crucial.
To protect your Linux servers and hosted applications from this type of attack, consider these best practices:
If you want to bolster your server's defenses against emerging threats, start your free 7-day trial with BitNinja today. Our solution provides comprehensive protection against a variety of attacks, including brute-force attempts and malware infiltration.
