Authentication Bypass Vulnerability in Devolutions Server
CVE-2026-9226

6.8MEDIUM

Key Information:

Vendor

Devolutions

Status
Server
Vendor
CVE Published:
6 October 2026

What is CVE-2026-9226?

An authentication bypass vulnerability exists in Devolutions Server versions 2026.3.7.0 and earlier, specifically within the Azure AD external login flow. This flaw allows remote attackers to potentially take control of a user’s account by replaying a captured login-session token that is inadvertently exposed in a redirect URL. Organizations using affected versions should take immediate action to mitigate this risk and secure their user accounts.

Affected Version(s)

Server 0 < 2026.3.8

References

https://devolutions.net/security/advisories/DEVO-2026-0035/

CVSS V3.1

Score:
6.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.