CVE-2026-4325

A flaw was found in Keycloak. The SingleUseObjectProvider, a global key-value store, lacks proper type and namespace isolation. This vulnerability allows an attacker to delete arbitrary single-use entries, which can enable the replay of consumed action tokens, such as password reset links. This could lead to unauthorized access or account compromise.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2026:6475	Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:6476	Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:6477	Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:6478	Vendor Advisory
https://access.redhat.com/security/cve/CVE-2026-4325	Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2448351	Issue Tracking Vendor Advisory

Configurations

Configuration 1 (hide)

OR	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:::

History

26 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) 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 eliminar entradas arbitrarias de un solo uso, lo que puede permitir la repetición de tokens de acción consumidos, como enlaces de restablecimiento de contraseña. Esto podría conducir a acceso no autorizado o compromiso de cuenta.

Information

Published : 2026-04-02 13:16

Updated : 2026-10-26 21:10

NVD link : CVE-2026-4325

Mitre link : CVE-2026-4325

CVE.ORG link : CVE-2026-4325

JSON object : View

Products Affected

redhat

build_of_keycloak

CWE

CWE-653

Improper Isolation or Compartmentalization

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