CVE-2026-39310

Trilium · Trilium Notes

A security vulnerability has been identified in the Trilium Notes application, a cross-platform personal knowledge base tool.

Executive summary

Trilium Notes is vulnerable to a security flaw that may allow unauthorized access or data compromise within the application.

Vulnerability

The vulnerability affects Trilium Notes, which is used for managing large personal knowledge bases. The specific technical details of the vulnerability are currently sparse, preventing a precise determination of the attack surface.

Business impact

The CVSS score of 8.6 qualifies this as a High severity vulnerability. Successful exploitation could lead to the unauthorized disclosure of sensitive information stored within personal knowledge bases or potential system-level compromise, depending on the application's deployment environment.

Remediation

Immediate Action: Apply all vendor-supplied security updates immediately upon release to ensure the application environment is secured.

Proactive Monitoring: Monitor for unusual modifications to note databases or unauthorized access attempts to the application interface.

Compensating Controls: Restrict network access to the application instance to trusted users and networks to minimize the potential attack surface.

Exploitation status

Public Exploit Available: false

Analyst recommendation

Users of Trilium Notes should treat this vulnerability as a significant risk to their personal or organizational data. Maintain vigilance for official vendor announcements and apply updates immediately to maintain the security of stored information.