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`. 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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.003 (23.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 23rd percentile — 23.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Openremote — versions < 1.22.1
Weakness classification (CWE)
References
- github.com/openremote/openremote/security/advisories/GHSA-49vv-25qx-mg44 (Exploit, Vendor Advisory)
- github.com/openremote/openremote/releases/tag/1.22.1 (Product, Release Notes)
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.