CVE-2026-4828 Auth bypass in Server
Remote attackers with valid credentials can bypass multi-factor authentication in Devolutions Server via crafted OAuth login requests.
- 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-2026-4828?
CVE-2026-4828 is a high-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 OAuth login functionality in Devolutions Server 2026.1.11 and earlier allows a remote attacker with valid credentials to bypass multi-factor authentication via a crafted login request.
Weakness: CWE-1390
Which versions are affected by CVE-2026-4828?
It affects 1 product.
Products include Devolutions Devolutions Server.
How do I fix CVE-2026-4828?
No fix has been published for CVE-2026-4828 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-2026-4828 being exploited?
There is no known exploitation of CVE-2026-4828 in the wild and no public exploit code.
Other vulnerabilities in Devolutions Devolutions Server
Sources
Also known as GHSA-g894-3pcr-4hv9.