CVE-2026-4282

7.4 HIGH
Published: April 02, 2026 Modified: April 16, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:6475
Source: secalert@redhat.com
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:6476
Source: secalert@redhat.com
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:6477
Source: secalert@redhat.com
Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:6478
Source: secalert@redhat.com
Vendor Advisory
https://access.redhat.com/security/cve/CVE-2026-4282
Source: secalert@redhat.com
Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2448061
Source: secalert@redhat.com
Issue Tracking Vendor Advisory

6 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.4 / 10.0
EPSS (Exploit Probability)
0.0%
9th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

redhat