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CVE-2026-4282

Full vulnerability record from the local CVENow database.

Description

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.

Severity
HIGH
CVSS score
7.4 (v3.1)
Vulnerability status
Modified
Source identifier
Published
2026-04-02 13:16:26.680000
Last modified
2026-10-26 21:10:00.170000
View original CVE JSON
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  "sourceIdentifier": "[email protected]",
  "published": "2026-04-02T13:16:26.680",
  "lastModified": "2026-10-26T21:10:00.170",
  "vulnStatus": "Modified",
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      "value": "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."
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      "lang": "es",
      "value": "Se encontró un fallo en Keycloak. El SingleUseObjectProvider, un almacén global de clave-valor, carece de aislamiento adecuado de tipo y espacio de nombres. Esta vulnerabilidad permite a un atacante no autenticado falsificar códigos de autorización. La explotación exitosa puede llevar a la creación de tokens de acceso con capacidad de administrador, resultando en escalada de privilegios."
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