VULNERABILITY INTELLIGENCE

CVE-2026-4282

CVSS score7.4 HIGH
EPSS probability0.43%
CISA KEVNot currently listed
Published2026-04-02
Last modified2026-10-26
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

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.

Weakness classification

  • CWE-653: Improper Isolation or Compartmentalization

Primary references