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CVE-2026-4636

Опубликовано: 02 апр. 2026
Источник: nvd
CVSS3: 8.1
EPSS Низкий

Описание

A flaw was found in Keycloak. An authenticated user with the uma_protection role can bypass User-Managed Access (UMA) policy validation. This allows the attacker to include resource identifiers owned by other users in a policy creation request, even if the URL path specifies an attacker-owned resource. Consequently, the attacker gains unauthorized permissions to victim-owned resources, enabling them to obtain a Requesting Party Token (RPT) and access sensitive information or perform unauthorized actions.

Уязвимые конфигурации

Конфигурация 1

Одно из

cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:text-only:*:*:*
cpe:2.3:a:redhat:build_of_keycloak:26.2:*:*:*:text-only:*:*:*
cpe:2.3:a:redhat:build_of_keycloak:26.2.15:*:*:*:text-only:*:*:*
cpe:2.3:a:redhat:build_of_keycloak:26.4:*:*:*:text-only:*:*:*
cpe:2.3:a:redhat:build_of_keycloak:26.4.11:*:*:*:text-only:*:*:*

EPSS

Процентиль: 27%
0.00346
Низкий

8.1 High

CVSS3

Дефекты

CWE-551
CWE-551

Связанные уязвимости

CVSS3: 8.1
redhat
4 месяца назад

A flaw was found in Keycloak. An authenticated user with the uma_protection role can bypass User-Managed Access (UMA) policy validation. This allows the attacker to include resource identifiers owned by other users in a policy creation request, even if the URL path specifies an attacker-owned resource. Consequently, the attacker gains unauthorized permissions to victim-owned resources, enabling them to obtain a Requesting Party Token (RPT) and access sensitive information or perform unauthorized actions.

CVSS3: 8.1
debian
4 месяца назад

A flaw was found in Keycloak. An authenticated user with the uma_prote ...

CVSS3: 8.1
github
4 месяца назад

Keycloak: UMA Policy Resource Injection Allows Unauthorized Cross-User Permission Grants

CVSS3: 8.1
fstec
5 месяцев назад

Уязвимость программного средства для управления идентификацией и доступом Keycloak, связанная с некорректным порядком поведения, позволяющая нарушителю получить несанкционированный доступ к конфиденциальной информации

EPSS

Процентиль: 27%
0.00346
Низкий

8.1 High

CVSS3

Дефекты

CWE-551
CWE-551