Improper Authentication Flaw in Devolutions Server by Devolutions
CVE-2026-4829

5.4MEDIUM

Key Information:

Vendor

Devolutions

Status
Server
Vendor
CVE Published:
1 April 2026

What is CVE-2026-4829?

An improper authentication vulnerability exists in the external OAuth authentication flow of Devolutions Server prior to version 2026.1.12. This flaw allows authenticated users to potentially impersonate other users, including system administrators, by reusing session codes obtained from external authentication flows. This security issue necessitates immediate attention to prevent unauthorized access and enhance user authentication practices.

Affected Version(s)

Server 0 <= 2026.1.11

References

https://devolutions.net/security/advisories/DEVO-2026-0010

CVSS V3.1

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

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.