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CVE-2026-18203

Опубликовано: 31 июл. 2026
Источник: nvd
CVSS3: 6.5
EPSS Низкий

Описание

A flaw was found in the group policy evaluation logic of Keycloak, an identity and access management solution. When a group policy is set to extend permissions to child groups, the system incorrectly uses a simple text-based prefix check to verify group membership. This allows a user who belongs to a different group with a similar starting name to bypass security checks and gain unauthorized access to administrative functions or protected resources.

Уязвимые конфигурации

Конфигурация 1
cpe:2.3:a:redhat:build_of_keycloak:-:*:*:*:-:*:*:*

EPSS

Процентиль: 8%
0.00182
Низкий

6.5 Medium

CVSS3

Дефекты

CWE-863

Связанные уязвимости

CVSS3: 6.5
redhat
20 дней назад

A flaw was found in the group policy evaluation logic of Keycloak, an identity and access management solution. When a group policy is set to extend permissions to child groups, the system incorrectly uses a simple text-based prefix check to verify group membership. This allows a user who belongs to a different group with a similar starting name to bypass security checks and gain unauthorized access to administrative functions or protected resources.

CVSS3: 6.5
debian
17 дней назад

A flaw was found in the group policy evaluation logic of Keycloak, an ...

CVSS3: 6.5
github
17 дней назад

A flaw was found in the group policy evaluation logic of Keycloak, an identity and access management solution. When a group policy is set to extend permissions to child groups, the system incorrectly uses a simple text-based prefix check to verify group membership. This allows a user who belongs to a different group with a similar starting name to bypass security checks and gain unauthorized access to administrative functions or protected resources.

EPSS

Процентиль: 8%
0.00182
Низкий

6.5 Medium

CVSS3

Дефекты

CWE-863