Is CVE-2026-15945 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-15945 being exploited in the wild.

How severe is CVE-2026-15945?

Medium severity, with a CVSS score of 4.3, published 16 July 2026.

Which products and versions are affected?

Red Hat Red Hat Build of Keycloak; Red Hat Red Hat Single Sign-On 7; Red Hat Red Hat Data Grid 8; Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack.

Is there a fix for CVE-2026-15945?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-15945 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-15945?

Check whether you run Red Hat build of Keycloak, Red Hat Data Grid 8 or Red Hat Single Sign-On 7. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-15945: Red Hat Keycloak authorization bypass in group search API

CVE-2026-15945 · Severity: medium · CVSS 4.3 · Published 2026-07-16

A security flaw in Keycloak's administrative interface allows certain low-privileged administrators to view information they should not have access to. Specifically, an administrator with permission to see a sub-group can bypass restrictions to view the full details, configuration, and sensitive attributes of the parent group. This could lead to the exposure of internal organizational structures and sensitive metadata.

Technologies: Red Hat build of Keycloak, Red Hat Data Grid 8, Red Hat Single Sign-On 7. Vendors: Red Hat.

Quick answers

Is CVE-2026-15945 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-15945 being exploited in the wild.
How severe is CVE-2026-15945?: Medium severity, with a CVSS score of 4.3, published 16 July 2026.
Which products and versions are affected?: Red Hat Red Hat Build of Keycloak; Red Hat Red Hat Single Sign-On 7; Red Hat Red Hat Data Grid 8; Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack.
Is there a fix for CVE-2026-15945?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-15945 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-15945?: Check whether you run Red Hat build of Keycloak, Red Hat Data Grid 8 or Red Hat Single Sign-On 7. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An information disclosure vulnerability exists in the Keycloak administrative API's group search functionality (GET /admin/realms/{realm}/groups). When Fine-Grained Admin Permissions (FGAP) v2 is enabled, the system fails to properly filter parent group details in the search response hierarchy. An attacker with 'query-groups' permissions and 'view' permissions on a child group can use the search parameter with 'briefRepresentation=false' to retrieve the full details of unauthorized parent groups. This includes internal UUIDs, custom group attributes, and role mappings that should otherwise be restricted.

Affected products

Red Hat Red Hat Build of Keycloak
Red Hat Red Hat Single Sign-On 7
Red Hat Red Hat Data Grid 8
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack

Timeline

2026-07-16: disclosed
2026-07-16: advisory

References

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