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CVE-2026-4634

Опубликовано: 02 апр. 2026
Источник: nvd
CVSS3: 7.5
EPSS Низкий

Описание

A flaw was found in Keycloak. An unauthenticated attacker can exploit this vulnerability by sending a specially crafted POST request with an excessively long scope parameter to the OpenID Connect (OIDC) token endpoint. This leads to high resource consumption and prolonged processing times, ultimately resulting in a Denial of Service (DoS) for the Keycloak server.

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: 41%
0.00517
Низкий

7.5 High

CVSS3

Дефекты

CWE-1050
CWE-1050

Связанные уязвимости

CVSS3: 7.5
redhat
4 месяца назад

A flaw was found in Keycloak. An unauthenticated attacker can exploit this vulnerability by sending a specially crafted POST request with an excessively long scope parameter to the OpenID Connect (OIDC) token endpoint. This leads to high resource consumption and prolonged processing times, ultimately resulting in a Denial of Service (DoS) for the Keycloak server.

CVSS3: 7.5
debian
4 месяца назад

A flaw was found in Keycloak. An unauthenticated attacker can exploit ...

CVSS3: 7.5
github
4 месяца назад

Keycloak: Application-Level DoS via Scope Processing

EPSS

Процентиль: 41%
0.00517
Низкий

7.5 High

CVSS3

Дефекты

CWE-1050
CWE-1050