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CVE-2026-16108

Опубликовано: 15 июл. 2026
Источник: redhat
CVSS3: 4.3
EPSS Низкий

Описание

A flaw was found in the default-groups REST endpoint and realm representation of Keycloak. This component is responsible for managing groups that are automatically assigned to new users within a realm. The issue allows a delegated administrator with realm-viewing permissions to see the names and identifiers of hidden default groups, even if they lack the specific permissions to view those groups. This can lead to the exposure of sensitive organizational structures or internal group names.

Отчет

The Red Hat Product Security team has assessed the severity of this vulnerability as Moderate, given that it requires the attacker to already possess delegated administrative privileges and for FGAP v2 to be enabled. Successful exploitation allows an attacker to disclose the names and identifiers of groups they are not authorized to view. The vulnerability's root cause is a missing permission check in the default-groups REST endpoint and realm representation logic.

Меры по смягчению последствий

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat Build of Keycloakkeycloak-servicesAffected
Red Hat Build of Keycloakrhbk-keycloak-rhel9/rhbk-keycloak-rhel9Affected
Red Hat Build of Keycloakrhbk-openshift-rhel9/rhbk-openshift-rhel9Affected
Red Hat Data Grid 8keycloak-servicesNot affected
Red Hat JBoss Enterprise Application Platform Expansion Packkeycloak-servicesNot affected
Red Hat Single Sign-On 7keycloak-servicesNot affected

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Дополнительная информация

Статус:

Moderate
https://bugzilla.redhat.com/show_bug.cgi?id=2501740keycloak-services: keycloak-services: Realm default-group reads disclose hidden groups under FGAP v2

EPSS

Процентиль: 9%
0.00194
Низкий

4.3 Medium

CVSS3

Связанные уязвимости

CVSS3: 4.3
nvd
около 1 месяца назад

A flaw was found in the default-groups REST endpoint and realm representation of Keycloak. This component is responsible for managing groups that are automatically assigned to new users within a realm. The issue allows a delegated administrator with realm-viewing permissions to see the names and identifiers of hidden default groups, even if they lack the specific permissions to view those groups. This can lead to the exposure of sensitive organizational structures or internal group names.

CVSS3: 4.3
debian
около 1 месяца назад

A flaw was found in the default-groups REST endpoint and realm represe ...

CVSS3: 4.3
github
около 1 месяца назад

A flaw was found in the default-groups REST endpoint and realm representation of Keycloak. This component is responsible for managing groups that are automatically assigned to new users within a realm. The issue allows a delegated administrator with realm-viewing permissions to see the names and identifiers of hidden default groups, even if they lack the specific permissions to view those groups. This can lead to the exposure of sensitive organizational structures or internal group names.

EPSS

Процентиль: 9%
0.00194
Низкий

4.3 Medium

CVSS3