What is CVE-2026-100289?

CVE-2026-100289 is a medium-severity vulnerability in Devolutions Server, classified under Missing Authorization. CVSS score: 5.0/10. Published 2026-09-29.

How severe is CVE-2026-100289?

Medium severity. CVSS v3 base score is 5.0 out of 10.

Auth bypass in Devolutions Server

CVE-2026-100289

Missing authorization in the gateway network scan token API in Devolutions Server 2026.3.5.0 and earlier allows an authenticated low-privileged user to generate a network scan token and perform internal network discovery and port scanning through the gateway via a crafted API request.

Vulnerability class: Broken Access Control

Published 2026-09-29 · last modified 2026-09-29.

CVSS v3 metric

CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Devolutions Server

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

devolutions.net/security/advisories/DEVO-2026-0034/

Frequently asked questions

What is CVE-2026-100289?: CVE-2026-100289 is a medium-severity vulnerability in Devolutions Server, classified under Missing Authorization. CVSS score: 5.0/10. Published 2026-09-29.
How severe is CVE-2026-100289?: Medium severity. CVSS v3 base score is 5.0 out of 10.