Typo3 · Extension "Syssy - Typo3 Monitoring & Security Checks" · CVE-2026-77130
**Name of the Vulnerable Software and Affected Versions**
The product name cannot be determined (affected versions not specified)
**Description**
The extension fails to properly validate the expiration of a client-supplied JWT (JSON Web Token), which is a compact, URL-safe means of representing claims to be transferred between two parties. This flaw allows an attacker who possesses a valid API key to authenticate using an expired token.
**Recommendations**
At the moment, there is no information about a newer version that contains a fix for this vulnerability.