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CVE-2026-4282

Опубликовано: 02 апр. 2026
Источник: redhat
CVSS3: 7.4

Описание

A flaw was found in Keycloak. The SingleUseObjectProvider, a global key-value store, lacks proper type and namespace isolation. This vulnerability allows an unauthenticated attacker to forge authorization codes. Successful exploitation can lead to the creation of admin-capable access tokens, resulting in privilege escalation.

Отчет

This is an IMPORTANT vulnerability in Keycloak. An unauthenticated attacker can exploit a lack of type and namespace isolation in Keycloak's SingleUseObjectProvider to forge authorization codes and obtain admin-capable access tokens. This could lead to unauthorized administrative access within affected Keycloak deployments.

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.

Дополнительная информация

Статус:

Important
Дефект:
CWE-653
https://bugzilla.redhat.com/show_bug.cgi?id=2448061keycloak: Keycloak: Privilege escalation via forged authorization codes due to SingleUseObjectProvider isolation flaw

7.4 High

CVSS3

Связанные уязвимости

CVSS3: 7.4
nvd
8 дней назад

A flaw was found in Keycloak. The SingleUseObjectProvider, a global key-value store, lacks proper type and namespace isolation. This vulnerability allows an unauthenticated attacker to forge authorization codes. Successful exploitation can lead to the creation of admin-capable access tokens, resulting in privilege escalation.

CVSS3: 7.4
debian
8 дней назад

A flaw was found in Keycloak. The SingleUseObjectProvider, a global ke ...

CVSS3: 7.4
github
8 дней назад

Keycloak: Privilege escalation via forged authorization codes due to SingleUseObjectProvider isolation flaw

7.4 High

CVSS3