CVE-2026-3204
Critical
Description
Improper input validation in the error message page in Devolutions Server 2025.3.16 and earlier allows remote attackers to spoof the displayed error message via a specially crafted URL.
SeverityCritical
CVSS9.8
Exploit probability—
ProductDevolutions Server
PublishedMar 3, 2026
First seenMar 3, 2026
Weakness typeCWE-20Improper input validation
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| devolutions devolutions_server | v ≤ 2025.3.16.0 | — |
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