CVE-2026-4829
Received Received - Intake
Improper Authentication in Devolutions Server OAuth Enables Privilege Escalation

Publication date: 2026-04-01

Last updated on: 2026-04-03

Assigner: Devolutions Inc.

Description
Improper authentication in the external OAuth authentication flow in Devolutions Server 2026.1.11 and earlier allows an authenticated user to authenticate as other users, including administrators, via reuse of a session code from an external authentication flow.
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Meta Information
Published
2026-04-01
Last Modified
2026-04-03
Generated
2026-06-16
AI Q&A
2026-04-01
EPSS Evaluated
2026-06-15
NVD
CVE-2026-4829
EUVD
EUVD-2026-17921
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
devolutions devolutions_server to 2026.1.12.0 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-287 When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
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Executive Summary

This vulnerability is an improper authentication issue in the external OAuth authentication flow of Devolutions Server version 2026.1.11 and earlier. It allows an authenticated user to reuse a session code from an external authentication flow to authenticate as other users, including administrators.

Impact Analysis

The vulnerability can allow an authenticated user to impersonate other users, including administrators, by reusing session codes. This could lead to unauthorized access to sensitive information, administrative functions, and potentially full control over the affected system.

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