Critical Hard-Coded Secret Flaw Found in clawvet API Server

The clawvet self-hosted API server (apps/api) contains a critical vulnerability, tracked as CVE-2026-62241, stemming from a hard-coded fallback JWT secret. This security oversight, present in versions prior to 0.7.5, allows remote unauthenticated attackers to compromise user accounts and extract sensitive information, including API keys and email addresses.

What's at Risk

The vulnerability affects all self-hosted deployments of the clawvet API server running versions earlier than 0.7.5. This flaw is particularly severe for organizations that have deployed the software in internet-facing environments without changing the default configuration parameters provided in the .env.example file.

Any organization utilizing this software for managing user authentication or scan data is at risk. Because the application ships with a predictable secret, any system that has not been explicitly reconfigured with a unique, secure key remains exposed to potential unauthorized access.

How the Flaw Works

Hard-coded credentials or cryptographic secrets represent a significant security weakness, often categorized under improper authentication or credential management. When an application relies on a static, known secret to sign session tokens—such as JSON Web Tokens (JWTs)—it effectively breaks the trust model of the authentication system. In general, this allows an attacker to bypass the intended authentication flow entirely.

By possessing the known secret, an adversary can forge valid session tokens locally. Once a token is generated, the attacker can present it to the server as if they were a legitimate, authenticated user. This type of vulnerability typically grants the attacker the same level of access as the impersonated account, potentially leading to unauthorized data exfiltration, administrative privilege escalation, or full system compromise without ever needing to provide a valid username or password.

How to Protect Your Systems

• Immediately upgrade your clawvet API server to version 0.7.5 or later to resolve the hard-coded secret issue.
• Ensure that your production environment uses a unique, cryptographically secure string for the JWT secret, rather than relying on default values.
• Restrict network access to your API server by placing it behind a firewall or VPN to minimize exposure to unauthenticated remote attackers.
• Implement regular security audits of configuration files and environment variables to ensure no default or weak credentials remain in production.
• Monitor server logs for suspicious activity, such as unexpected authentication attempts or unauthorized access to sensitive API endpoints like /api/v1/auth/me.

Given the CVSS score of 9.1, this vulnerability presents a high risk of exploitation. Promptly updating to the patched version is essential to secure your infrastructure against unauthorized access and protect user data from being harvested by malicious actors.