CVE-2026-4989 Server-side request forgery in Server

Medium 4.3 Published 1 Apr 2026 Updated 1 Apr 2026

A low-privileged user can exploit improper input validation in the gateway health check to perform SSRF and disclose information.

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-2026-4989?

CVE-2026-4989 is a medium-severity server-side request forgery 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 input validation in the gateway health check feature in Devolutions Server allows a low-privileged authenticated user to perform server-side request forgery (SSRF), potentially leading to information disclosure, via a crafted API request. This issue affects Server: from 2026.1.1 through 2026.1.11, from 2025.3.1 through 2025.3.17.

Weakness: CWE-918

Which versions are affected by CVE-2026-4989?

It affects 1 product.

Products include Devolutions Devolutions Server.

How do I fix CVE-2026-4989?

No fix has been published for CVE-2026-4989 yet. Limit exposure of the affected software until one is available.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2026-4989 being exploited?

There is no known exploitation of CVE-2026-4989 in the wild and no public exploit code.

All Devolutions Devolutions Server vulnerabilities

Sources

Also known as GHSA-w89v-w2pq-cc25.