Keycloak's Account Resources user lookup endpoint allows a remote authenticated user, who owns at least one User-Managed Access (UMA) resource, to enumerate and harvest personally identifiable information (PII) for all realm users. By sending crafted requests with arbitrary usernames or email values, the endpoint returns full profile objects for unrelated users. This leads to broad profile-level information disclosure.
Update org.keycloak:keycloak-services to 26.4.12; org.keycloak:keycloak-services to 26.6.2 if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scanKeycloak Account Resources user lookup contains broken access control affects org.keycloak:keycloak-services (maven), org.keycloak:keycloak-services (maven). Severity is medium. Keycloak's Account Resources user lookup endpoint allows a remote authenticated user, who owns at least one User-Managed Access (UMA) resource, to enumerate and harvest personally identifiable information (PII) for all realm users. By sending crafted requests with arbitrary usernames or email values, the endpoint returns full profile objects for unrelated users. This leads to broad profile-level information disclosure.
AI coding agents often install or upgrade packages automatically in maven. A medium vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|---|---|
| org.keycloak:keycloak-servicesmaven |
Keycloak's Account Resources user lookup endpoint allows a remote authenticated user, who owns at least one User-Managed Access (UMA) resource, to enumerate and harvest personally identifiable information (PII) for all realm users. By sending crafted requests with arbitrary usernames or email values, the endpoint returns full profile objects for unrelated users. This leads to broad profile-level information disclosure.
Update org.keycloak:keycloak-services to 26.4.12; org.keycloak:keycloak-services to 26.6.2 if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scanKeycloak Account Resources user lookup contains broken access control affects org.keycloak:keycloak-services (maven), org.keycloak:keycloak-services (maven). Severity is medium. Keycloak's Account Resources user lookup endpoint allows a remote authenticated user, who owns at least one User-Managed Access (UMA) resource, to enumerate and harvest personally identifiable information (PII) for all realm users. By sending crafted requests with arbitrary usernames or email values, the endpoint returns full profile objects for unrelated users. This leads to broad profile-level information disclosure.
AI coding agents often install or upgrade packages automatically in maven. A medium vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|---|---|
| org.keycloak:keycloak-servicesmaven |
| <26.4.12 |
| 26.4.12 |
| org.keycloak:keycloak-servicesmaven | >=26.5.0,<26.6.2 | 26.6.2 |
|---|
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by GitHub Security Advisories (ghsa).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL Guard| <26.4.12 |
| 26.4.12 |
| org.keycloak:keycloak-servicesmaven | >=26.5.0,<26.6.2 | 26.6.2 |
|---|
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by GitHub Security Advisories (ghsa).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL Guard