MEDIUM4.9
GHSA-rrv7-3mqf-hxfr
Keycloak: Information Disclosure via evaluate-scopes Admin API
Quick fix
GHSA-rrv7-3mqf-hxfr — org.keycloak:keycloak-services: upgrade to the fixed version with the command below.
# pom.xml: bump <version>26.6.2</version> for org.keycloak:keycloak-servicesDetails
A flaw was found in Keycloak. A low-privilege administrator with the 'view-clients' role can exploit this by invoking the 'evaluate-scopes' Admin API endpoints with an arbitrary user ID (userId) parameter. This vulnerability allows for cross-role personally identifiable information (PII) leakage, enabling unauthorized visibility into user identities and authorizations across the realm. Exploitation is possible remotely via network access to the Admin API.
Are you affected?
Enter the version of the package you're using.
Affected packages
Maven/org.keycloak:keycloak-services
Introduced in:
0Fixed in: 26.6.2Fix
# pom.xml: bump <version>26.6.2</version> for org.keycloak:keycloak-servicesReferences
- https://nvd.nist.gov/vuln/detail/CVE-2026-37978[ADVISORY]
- https://github.com/keycloak/keycloak/commit/492d1f04cdad425dadb9d5e1faa94dd17a875573[WEB]
- https://github.com/keycloak/keycloak/commit/ba9a18744dcec2ef46f284d25c1c0aa1c962a500[WEB]
- https://access.redhat.com/errata/RHSA-2026:19596[WEB]
- https://access.redhat.com/errata/RHSA-2026:19597[WEB]
- https://access.redhat.com/security/cve/CVE-2026-37978[WEB]
- https://bugzilla.redhat.com/show_bug.cgi?id=2455327[WEB]
- https://github.com/keycloak/keycloak[PACKAGE]