CVE-2026-4829 Auth bypass in Server
Authenticated users can impersonate others, including admins, by reusing session codes in the external OAuth flow of Devolutions Server.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-4829?
CVE-2026-4829 is a medium-severity authentication bypass vulnerability in Devolutions Devolutions Server, published on 1 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-287
Which versions are affected by CVE-2026-4829?
It affects 1 product.
Products include Devolutions Devolutions Server.
How do I fix CVE-2026-4829?
No fix has been published for CVE-2026-4829 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-4829 being exploited?
There is no known exploitation of CVE-2026-4829 in the wild and no public exploit code.
Other vulnerabilities in Devolutions Devolutions Server
Sources
Also known as GHSA-9mpq-hm4j-g84v.