CVE-2026-41166 json
OpenRemote has Improper Access Control via updateUserRealmRoles function
published 2026-04-22 6 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-25096 , GHSA-49vv-25qx-mg44
- cvss
- 7.0
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 21%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- maven io.openremote:openremote-manager 1.22.1
- io.openremote openremote-manager 1.22.1
- openremote openremote 1.22.1
CISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- total
- Assessed
- 6 mo ago
Exploit prediction
0.29% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/openremote/openremote/security/advisories/GHSA-49vv-25qx-mg44 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.0 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L |
| GitHub | 3.1 | 7.0 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | io.openremote:openremote-manager | <1.22.1 |
1.22.1 |
Affected products
- openremote openremote
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
-
github.com
/openremote/openremote/security/advisories/GHSA-49vv-25qx-mg44
exploit, web, vendor-advisory
-
github.com
/openremote/openremote/releases/tag/1.22.1
web, product, release-notes
-
nvd.nist.gov
/vuln/detail/CVE-2026-41166
advisory
-
github.com
/openremote/openremote
package
Sources
- CVE List CVE-2026-41166
- GitHub Advisory GHSA-49vv-25qx-mg44
- NVD CVE-2026-41166
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.