What’s Vulnerable › Vulnerabilities

CVE-2026-41166: OpenRemote has Improper Access Control via updateUserRealmRoles function

• Severity: high (CVSS 7.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-04-22 · updated 2026-06-17
• Weakness: CWE-284

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.

Affected products

• openremote: before 1.22.1 — fixed in 1.22.1

How to fix

Upgrade to a fixed version: openremote 1.22.1. Check the vendor advisory for mitigations.

References

• https://github.com/openremote/openremote/releases/tag/1.22.1
• https://github.com/openremote/openremote/security/advisories/GHSA-49vv-25qx-mg44
• https://github.com/openremote/openremote/security/advisories/GHSA-49vv-25qx-mg44

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