Описание
A flaw was found in Keycloak. When a JSON Web Encryption (JWE) encrypted request object is submitted, Keycloak may incorrectly process unsigned claims if the decrypted content is raw JSON, bypassing the configured signature policy. This allows a remote attacker to submit unauthorized claims, leading to a compromise of data integrity within the OpenID Connect (OIDC) authorization flow. While a redirect URI allowlist acts as a compensating control, this vulnerability violates OIDC Core and Financial-grade API (FAPI) signing requirements.
Ссылки
- Vendor Advisory
- Issue TrackingVendor Advisory
Уязвимые конфигурации
EPSS
5.9 Medium
CVSS3
7.5 High
CVSS3
Дефекты
Связанные уязвимости
A flaw was found in Keycloak. When a JSON Web Encryption (JWE) encrypted request object is submitted, Keycloak may incorrectly process unsigned claims if the decrypted content is raw JSON, bypassing the configured signature policy. This allows a remote attacker to submit unauthorized claims, leading to a compromise of data integrity within the OpenID Connect (OIDC) authorization flow. While a redirect URI allowlist acts as a compensating control, this vulnerability violates OIDC Core and Financial-grade API (FAPI) signing requirements.
A flaw was found in Keycloak. When a JSON Web Encryption (JWE) encrypt ...
Keycloak has an Improper Verification of Cryptographic Signature issue
EPSS
5.9 Medium
CVSS3
7.5 High
CVSS3