Authorization Flaw in Devolutions Server Allows Unauthorized Modification of Vault Attachments
CVE-2026-100287

5.4MEDIUM

Key Information:

Vendor

Devolutions

Status
Server
Vendor
CVE Published:
29 September 2026

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.

Affected Version(s)

Server 0 < 2026.3.7.0

References

https://devolutions.net/security/advisories/DEVO-2026-0034/

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.