CVE-2026-5146 Missing authorization in Server
Unauthenticated attackers can modify or delete arbitrary user notification records due to missing session validation in 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-2026-5146?
CVE-2026-5146 is a medium-severity missing authorization vulnerability in Devolutions Devolutions Server, published on 12 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Improper access control in the notification management endpoints in Devolutions Server allows an unauthenticated attacker to modify or delete arbitrary user notification records via missing session validation.
This issue affects the following versions :
*
Devolutions Server 2026.1.6.0 through 2026.1.15.0
*
Devolutions Server 2025.3.19.0 and earlier
Weakness: CWE-862
Which versions are affected by CVE-2026-5146?
It affects 1 product.
Products include Devolutions Devolutions Server.
How do I fix CVE-2026-5146?
No fix has been published for CVE-2026-5146 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-5146 being exploited?
There is no known exploitation of CVE-2026-5146 in the wild and no public exploit code.
Other vulnerabilities in Devolutions Devolutions Server
Sources
Also known as GHSA-hm73-pxhm-5967.