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CVE-2026-4282

nvd nist
Published: Apr 2, 2026Modified: Jul 15, 2026

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7.4
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Exploitability: 2.2 / Impact: 5.2
Source: secalert@redhat.com (Secondary)

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.

Affected (5)

Redhat
1 product
Build Of Keycloak
Configuration A
5 vulnerable
Vulnerable SoftwareAffected Versions
Redhat
Build Of Keycloak
All versions
Build Of Keycloak
Version 26.2.15
Build Of Keycloak
Version 26.2
Build Of Keycloak
Version 26.4.11
Build Of Keycloak
Version 26.4

Related CWEs

CWE-653
Improper Isolation or Compartmentalization
The product does not properly compartmentalize or isolate functionality, processes, or resources that require different privilege levels, rights, or permissions.

References (13)

Source: secalert@redhat.com
Vendor Advisory
Source: secalert@redhat.com
Vendor Advisory
Source: secalert@redhat.com
Vendor Advisory
Source: secalert@redhat.com
Vendor Advisory
Source: secalert@redhat.com
Vendor Advisory
Source: secalert@redhat.com
Issue TrackingVendor Advisory
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Vendor Advisory
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Vendor Advisory
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Vendor Advisory
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Vendor Advisory
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Vendor Advisory
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Issue TrackingVendor Advisory
Source: 0b0ca135-0b70-47e7-9f44-1890c2a1c46c

Timeline

No history available yet.