What is CVE-2026-41166?

CVE-2026-41166 is a high-severity vulnerability in Openremote, classified under Improper Access Control. CVSS score: 7.0/10. Published 2026-04-22.

How severe is CVE-2026-41166?

High severity. CVSS v3 base score is 7.0 out of 10.

Vulnerability in Openremote

CVE-2026-41166

OpenRemote is an open-source internet-of-things platform. Prior to version 1.22.1, a user who has `write:admin` in one Keycloak realm can call the Manager API to update Keycloak realm roles for users in another realm, including `master`. T…

EPSS: 0.000 (6.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L.

Affected products

Openremote — versions < 1.22.1

Weakness classification (CWE)

CWE-284 — Improper Access Control

References

https://github.com/openremote/openremote/security/advisories/GHSA-49vv-25qx-mg44 (x_refsource_CONFIRM)
https://github.com/openremote/openremote/releases/tag/1.22.1 (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-41166?: CVE-2026-41166 is a high-severity vulnerability in Openremote, classified under Improper Access Control. CVSS score: 7.0/10. Published 2026-04-22.
How severe is CVE-2026-41166?: High severity. CVSS v3 base score is 7.0 out of 10.