Critical Server-Side Request Forgery Vulnerability Revealed

A significant flaw has been detected in the devlikeapro WAHA API that can lead to server-side request forgery (SSRF). This vulnerability (CVE-2026-6979) affects versions up to 2026.3.4, and it poses serious risks to Linux servers and web applications.

Summary of the Incident

The vulnerability is located in the file src/api/media.controller.ts within the component API Request Handler. Attackers can exploit this flaw remotely, initiating a brute-force attack that allows unauthorized access to server resources. The exploit code is publicly available, making it essential for system administrators and hosting providers to act swiftly.

Why This Matters for Server Admins and Hosting Providers

For system administrators and hosting providers, this vulnerability signifies a critical threat to server security. If exploited, it can lead to unauthorized access and data breaches. As defenders of your infrastructure, understanding and mitigating such vulnerabilities is part of your core responsibilities.

Mitigation Steps to Enhance Security

To protect against CVE-2026-6979, consider implementing the following measures:

• Update the devlikeapro WAHA API to the latest version.
• Implement strong input validation on requests processed by the affected file.
• Restrict outbound network access from your API to minimize potential attacks.
• Use a web application firewall (WAF) to monitor and filter incoming traffic.
• Enable malware detection features on your hosting platform.

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