Authorization Flaw in Devolutions Server Allows Unauthorized Modification of Vault Attachments

CVE-2026-100287

What is CVE-2026-100287?

A security vulnerability in Devolutions Server versions 2026.3.5.0 and earlier arises from a lack of proper authorization checks in the attachment history API. This oversight allows authenticated users with low privileges to exploit the API by sending specially crafted requests, enabling them to delete or restore vault attachments without proper permissions. Such misuse can lead to unauthorized alterations in sensitive data management, posing significant risks to data integrity and availability.

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