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CVE-2026-16089

Опубликовано: 17 июл. 2026
Источник: redhat
CVSS3: 5.4
EPSS Низкий

Описание

A flaw was found in the keycloak-services component of Red Hat Build of Keycloak. The issue occurs because OAuth 2.0 authorization codes are not properly bound to the client that originally requested them. An attacker who can intercept an authorization code can modify it to be redeemed by their own client, potentially allowing them to obtain access tokens for a victim's identity.

Отчет

The Red Hat Product Security team has assessed the severity of this vulnerability as Moderate, given that exploitation requires the attacker to intercept a valid authorization code and have a registered client in the same realm. Successful exploitation allows an attacker to retarget an authorization code to their own client and obtain tokens for the victim's identity. The vulnerability's root cause is the lack of binding between the authorization code and the issuing client identifier in the code payload.

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=2501724keycloak-services: keycloak-services: Authorization codes can be retargeted to another client session

EPSS

Процентиль: 4%
0.00141
Низкий

5.4 Medium

CVSS3

Связанные уязвимости

CVSS3: 5.4
nvd
около 1 месяца назад

A flaw was found in the keycloak-services component of Red Hat Build of Keycloak. The issue occurs because OAuth 2.0 authorization codes are not properly bound to the client that originally requested them. An attacker who can intercept an authorization code can modify it to be redeemed by their own client, potentially allowing them to obtain access tokens for a victim's identity.

CVSS3: 5.4
debian
около 1 месяца назад

A flaw was found in the keycloak-services component of Red Hat Build o ...

CVSS3: 5.4
github
около 1 месяца назад

A flaw was found in the keycloak-services component of Red Hat Build of Keycloak. The issue occurs because OAuth 2.0 authorization codes are not properly bound to the client that originally requested them. An attacker who can intercept an authorization code can modify it to be redeemed by their own client, potentially allowing them to obtain access tokens for a victim's identity.

EPSS

Процентиль: 4%
0.00141
Низкий

5.4 Medium

CVSS3