CVE-2026-65709

nuxsmin · sysPass

sysPass contains an authorization bypass vulnerability via its JSON-RPC API, allowing authenticated users to perform unauthorized actions.

Executive summary

The sysPass password management software is affected by an authorization bypass vulnerability that could allow authenticated users to gain unauthorized access to data.

Vulnerability

This vulnerability is a CWE-639 (Authorization Bypass Through User-Controlled Key) flaw. It allows an authenticated user to bypass object-level authorization checks within the JSON-RPC API.

Business impact

Successful exploitation allows an authenticated attacker to access or manipulate sensitive password data they are not authorized to view or modify. Given the CVSS score of 8.3, the potential for total loss of confidentiality and integrity regarding stored credentials presents a severe risk to organizational security.

Remediation

Immediate Action: Restrict access to the sysPass JSON-RPC API until a vendor-supplied patch is applied.

Proactive Monitoring: Review API access logs for anomalous requests or attempts to access resources outside of the user's assigned scope.

Compensating Controls: Utilize a Web Application Firewall (WAF) to inspect and block suspicious JSON-RPC requests that attempt to manipulate object IDs.

Exploitation status

Public Exploit Available: Unknown.

Analyst recommendation

This vulnerability represents a critical risk to credential security within sysPass. Administrators should monitor vendor channels for an official patch release and apply it immediately upon availability.