Key points
- CVE-2026-108753 carries a CVSS score of 9.3, rated Critical by the NVD.
- The vulnerability stems from hardcoded credentials in the self-host.docker-compose.yml file.
- Attackers can impersonate administrators without prior authentication to alter server settings.
The short version
- Agnaistic Agnai versions up to 1.0.555 contain a critical security flaw involving hardcoded secrets.
- The defect allows unauthenticated users to log in as admin or forge administrative tokens.
- The National Vulnerability Database rates the issue with a CVSS score of 9.3.
The details
Agnaistic Agnai versions through 1.0.555 suffer from a critical vulnerability identified as CVE-2026-108753. According to the National Vulnerability Database, the flaw stems from hardcoded credentials embedded within the self-host.docker-compose.yml configuration file. This file establishes a fixed password for the administrator account and exposes a public JSON Web Token secret. The NVD assigns the issue a CVSS score of 9.3, classifying it as Critical.
An attacker does not need valid login credentials to exploit this weakness. The hardcoded nature of the secrets allows unauthenticated individuals to access the system directly. They can log in using the known fixed admin password. Alternatively, they can use the exposed public secret to sign their own JWTs. By setting the admin flag to true in these self-signed tokens, attackers can impersonate administrative users.
This capability grants attackers full control over the application. They can reset user passwords and modify core server configurations. The weakness is categorized under CWE-798, which relates to the use of hardcoded credentials. The vulnerability affects all versions of Agnaistic Agnai up to and including 1.0.555. No patched version has been confirmed in the available source material.
The context
The exposure of a public JWT secret is particularly dangerous because it breaks the trust model of the application. When a secret key used for signing tokens is publicly accessible or hardcoded, anyone can generate valid tokens. This bypasses standard authentication mechanisms entirely. The inclusion of a fixed admin password in a deployment file further compounds the risk, as deployment files are often stored in version control systems or shared among team members.
The self-host.docker-compose.yml file is typically used for local or self-hosted deployments. Developers or system administrators might overlook security checks in these configuration files, assuming they are only for internal use. However, if these configurations are deployed to accessible environments or if the secrets are leaked, they become immediate targets for exploitation. The combination of a static password and a public signing key creates a complete bypass of security controls.
What to watch
Organizations using Agnaistic Agnai should verify their current version immediately. If running version 1.0.555 or earlier, the system is vulnerable. Monitor for unusual administrative activity, such as password resets or configuration changes, which could indicate exploitation. Since the flaw allows unauthenticated access, any external traffic attempting to log in with default credentials should raise alarms. Watch for official announcements from the vendor regarding a fix.
What to do and how to stay safe: Agnaistic Agnai
- Check your Agnaistic Agnai version and confirm if it is 1.0.555 or older.
- Inspect the self-host.docker-compose.yml file for hardcoded passwords and JWT secrets.
- Rotate all administrative passwords and regenerate JWT secrets immediately if exposed.
- Monitor server logs for unauthenticated login attempts or unauthorized configuration changes.
Step-by-step guide: Automatic Software Updates: Definition, Mechanics and Hidden Risks
General security guidance from the TechSec Headlines newsroom. It is not confirmed advice from the organisations named in this story.
Frequently asked questions
What is the CVSS score for CVE-2026-108753?
The National Vulnerability Database rates CVE-2026-108753 with a CVSS score of 9.3, which is considered Critical.
Which versions of Agnaistic Agnai are affected?
All versions of Agnaistic Agnai up to and including 1.0.555 are affected by this vulnerability.
Can an attacker exploit this without logging in?
Yes, the vulnerability allows unauthenticated attackers to log in as admin or forge tokens to impersonate users.
