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CVE-2026-89298

Опубликовано: 10 сент. 2026
Источник: redhat
CVSS3: 4.9
EPSS Низкий

Описание

A flaw was found in the Dynamic Client Registration service of Keycloak, an open-source identity and access management solution. The issue occurs when a user with the view-clients role accesses the client registration endpoint to retrieve client details. Due to a failure to mask sensitive information, the service returns the client's confidential secret in cleartext. This could allow a read-only administrator to obtain full access to the affected client's account and potentially escalate their privileges within the realm.

Отчет

The Red Hat Product Security team has assessed the severity of this vulnerability as Moderate, given that exploitation requires the attacker to already possess the view-clients administrative role. Successful exploitation allows an attacker to retrieve cleartext client secrets for confidential clients, which can be used to impersonate the client and potentially escalate privileges. The vulnerability's root cause is a failure to apply secret masking to the Dynamic Client Registration GET endpoint.

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/rhbk-openshift-rhel9Affected
Red Hat Build of Keycloakkeycloak-servicesAffected
Red Hat Build of Keycloakrhbk/keycloak-rhel9Affected
Red Hat Single Sign-On 7keycloak-servicesFix deferred

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-200
https://bugzilla.redhat.com/show_bug.cgi?id=2531871keycloak-services: keycloak-services: Confidential client secret disclosed to view-clients role via Client Registration GET

EPSS

Процентиль: 16%
0.00244
Низкий

4.9 Medium

CVSS3

Связанные уязвимости

CVSS3: 4.9
nvd
4 дня назад

A flaw was found in the Dynamic Client Registration service of Keycloak, an open-source identity and access management solution. The issue occurs when a user with the view-clients role accesses the client registration endpoint to retrieve client details. Due to a failure to mask sensitive information, the service returns the client's confidential secret in cleartext. This could allow a read-only administrator to obtain full access to the affected client's account and potentially escalate their privileges within the realm.

CVSS3: 4.9
debian
4 дня назад

A flaw was found in the Dynamic Client Registration service of Keycloa ...

CVSS3: 4.9
github
4 дня назад

A flaw was found in the Dynamic Client Registration service of Keycloak, an open-source identity and access management solution. The issue occurs when a user with the view-clients role accesses the client registration endpoint to retrieve client details. Due to a failure to mask sensitive information, the service returns the client's confidential secret in cleartext. This could allow a read-only administrator to obtain full access to the affected client's account and potentially escalate their privileges within the realm.

EPSS

Процентиль: 16%
0.00244
Низкий

4.9 Medium

CVSS3