CVE-2026-3131 is a security vulnerability identified in Devolutions Server, specifically versions 2025.3.14.0 and earlier. The issue arises from improper access control in multiple REST API endpoints of the DVLS (Devolutions Server) product. Authenticated users who possess only view-only permissions can exploit this flaw to access sensitive connection data that should be restricted. This vulnerability is classified under CWE-200, which pertains to the exposure of sensitive information to unauthorized actors. The vulnerability does not require elevated privileges beyond view-only access, meaning that users with minimal permissions can escalate their access to sensitive data. The affected data likely includes connection credentials or configuration details that could be leveraged for further attacks or unauthorized access. No CVSS score has been assigned yet, and there are no known exploits in the wild. The lack of a patch at the time of publication means organizations must rely on interim mitigations. The vulnerability impacts the confidentiality of sensitive information, potentially undermining trust in the Devolutions Server product and exposing organizations to data leakage risks. Since Devolutions Server is commonly used in enterprise environments for managing remote connections and credentials, this vulnerability could have significant operational and security implications if exploited.

The primary impact of CVE-2026-3131 is the unauthorized exposure of sensitive connection data to users who should only have view-only access. This breach of confidentiality can lead to several downstream risks, including unauthorized access to critical systems, lateral movement within networks, and potential data exfiltration. Organizations relying on Devolutions Server for managing remote connections may face increased risk of insider threats or compromised user accounts being leveraged to gather sensitive information. The exposure of connection credentials or configuration details can facilitate further attacks such as credential theft, privilege escalation, or targeted intrusions. Although the vulnerability requires authentication, the fact that minimal permissions are sufficient to exploit it broadens the attack surface. This can undermine security policies that rely on strict role-based access controls. The absence of known exploits in the wild currently limits immediate widespread impact, but the vulnerability presents a significant risk if weaponized. Enterprises in sectors such as finance, healthcare, government, and critical infrastructure are particularly vulnerable due to the sensitive nature of their remote access environments.

Until an official patch is released by Devolutions, organizations should implement several specific mitigations: 1) Conduct a thorough audit of user accounts with view-only permissions and restrict these to only trusted personnel. 2) Limit network access to the Devolutions Server REST API endpoints through network segmentation, firewalls, or VPN restrictions to reduce exposure. 3) Monitor API usage logs for unusual access patterns or attempts to retrieve sensitive connection data by view-only users. 4) Employ multi-factor authentication (MFA) for all users accessing the Devolutions Server to reduce the risk of compromised credentials. 5) Temporarily disable or restrict access to the affected REST API endpoints if feasible, or implement custom access controls via reverse proxies or API gateways. 6) Educate administrators and users about the risk and encourage prompt reporting of suspicious activity. 7) Plan for rapid deployment of patches once available and test updates in a controlled environment before production rollout. These targeted actions go beyond generic advice by focusing on access control tightening, monitoring, and network-level protections specific to the vulnerability's exploitation vector.