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CVE-2026-9803

Опубликовано: 28 мая 2026
Источник: debian
EPSS Низкий

Описание

A flaw was found in Keycloak's ClientRegistrationAuth component. A remote unauthenticated attacker can exploit this vulnerability by sending a specially crafted POST request with a malformed 'Authorization: Bearer' header to any client registration endpoint. This can lead to an ArrayIndexOutOfBoundsException, causing the server to return an HTTP 500 error and resulting in a Denial of Service (DoS) for the affected service.

Пакеты

ПакетСтатусВерсия исправленияРелизТип
keycloakitppackage

EPSS

Процентиль: 34%
0.00417
Низкий

Связанные уязвимости

CVSS3: 5.3
redhat
2 месяца назад

A flaw was found in Keycloak's ClientRegistrationAuth component. A remote unauthenticated attacker can exploit this vulnerability by sending a specially crafted POST request with a malformed 'Authorization: Bearer' header to any client registration endpoint. This can lead to an ArrayIndexOutOfBoundsException, causing the server to return an HTTP 500 error and resulting in a Denial of Service (DoS) for the affected service.

CVSS3: 5.3
nvd
2 месяца назад

A flaw was found in Keycloak's ClientRegistrationAuth component. A remote unauthenticated attacker can exploit this vulnerability by sending a specially crafted POST request with a malformed 'Authorization: Bearer' header to any client registration endpoint. This can lead to an ArrayIndexOutOfBoundsException, causing the server to return an HTTP 500 error and resulting in a Denial of Service (DoS) for the affected service.

CVSS3: 5.3
github
2 месяца назад

Keycloak has an Out-of-bounds Read

EPSS

Процентиль: 34%
0.00417
Низкий