CVE-2026-5171 Missing authorization in Server
Authenticated users can bypass permission checks to view activity logs for entries they should not access via crafted API 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-2026-5171?
CVE-2026-5171 is a medium-severity missing authorization vulnerability in Devolutions Devolutions Server, published on 22 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 entry activity log feature in Devolutions Server allows an authenticated user with access to an entry but without the required permission to retrieve that entry's activity logs via a crafted API request.
This issue affects :
* Devolutions Server 2026.1.6.0 through 2026.1.16.0 * Devolutions Server 2025.3.20.0 and earlier
Weakness: CWE-284
Which versions are affected by CVE-2026-5171?
It affects 1 product.
Products include Devolutions Devolutions Server.
How do I fix CVE-2026-5171?
No fix has been published for CVE-2026-5171 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-2026-5171 being exploited?
There is no known exploitation of CVE-2026-5171 in the wild and no public exploit code.
Other vulnerabilities in Devolutions Devolutions Server
Sources
Also known as GHSA-3q36-9rmf-ffj7.