CVE-2026-4282 Details
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.
A vulnerability exists in Keycloak's SingleUseObjectProvider, which serves as a global key-value store. This flaw arises from inadequate type and namespace isolation, enabling an unauthenticated attacker to forge authorization codes. Exploiting this vulnerability can result in the creation of access tokens with administrative privileges, leading to unauthorized privilege escalation.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 2, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-653 | Improper Isolation or Compartmentalization | redhat-SADP |
| CWE-653 | Improper Isolation or Compartmentalization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| redhat build of keycloak | 26.2 26.2.15 26.4 26.4.11 |
CPE
Remediation
| |
Change History
8 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 15, 2026 | CVE Modified | redhat-SADP |
| Jun 30, 2026 | CVE Modified | redhat-SADP |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 16, 2026 | Initial Analysis | [email protected] |
| Apr 2, 2026 | CVE Modified | [email protected] |
| Apr 2, 2026 | CVE Modified | [email protected] |
| Apr 2, 2026 | New CVE Received | [email protected] |