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Vulnerability record · CVE-2026-41166 · published 22 April 2026

CVE-2026-41166: Openremote improper access control vulnerability

Openremote · Openremote

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`. The handler uses the `{realm}` path segment when talking to the identity provider but does not check that the caller may administer that realm. This could result in a privilege escalation to `master` realm administrator if the attacker controls any user in `master` realm. Version 1.22.1 fixes the issue.

7.0 CVSS 3.1 High EPSS 0.33% · top 76.8% CWE-284 · Improper access control
7.0CVSS 3.1 base score
0.33%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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`. The handler uses the `{realm}` path segment when talking to the identity provider but does not check that the caller may administer that realm. This could result in a privilege escalation to `master` realm administrator if the attacker controls any user in `master` realm. Version 1.22.1 fixes the issue.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/openremote/openremote/releases/tag/1.22.1 ProductRelease Notes
https://github.com/openremote/openremote/security/advisories/GHSA-49vv-25qx-mg44 ExploitVendor Advisory
https://github.com/openremote/openremote/security/advisories/GHSA-49vv-25qx-mg44 ExploitVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-41166), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.