CVE-2026-4282
High · 7.4CVSS
7.4
EPSS
0.5%
Published
Apr 2, 2026
CISA due date
—
The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
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