Red HatCVE-2026-18207
Red Hat client policy enforcement mechanism of Keycloak: improper authorization
Medium6.5CVE-2026-18207 · Published Jul 29, 2026 · updated Aug 11, 2026
A flaw was found in the client policy enforcement mechanism of Keycloak. The issue occurs when the system checks group membership by name instead of a unique identifier. An attacker with client management privileges could bypass security policies by joining a group with a matching name in a different part of the group hierarchy, potentially allowing them to register or update clients without following required security hardening profiles.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Red Hat Build of Keycloak Product | all versions | No fix yet |
| all versions | No fix yet | |
| all versions | No fix yet | |
| Red Hat Data Grid 8 Product | all versions | No fix yet |
| Red Hat JBoss Enterprise Application Platform Expansion Pack Product | all versions | No fix yet |
| Red Hat Single Sign-On 7 Product | all versions | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-285
More Red Hat advisories
All Red Hat| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Jul 29 | Quay. A user configured: improper authorization | High7.2 | No fix yet |
| Jul 29 | Red Hat BFD: out-of-bounds write | High7.8 | No fix yet |
| Jul 29 | Red Hat Data Grid 8: missing authorization | Medium5.5 | No fix yet |
| Jul 28 | Red Hat CRIU: code injection | High7.8 | No fix yet |
| Jul 28 | Red Hat sg3_utils. The sg_inq command: code execution | High7.6 | No fix yet |
| Jul 28 | A flaw was found in openshift/oauth-proxy | High8.5 | No fix yet |