CVE-2026-4282
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.
Scoring
- Severity
- HIGH
- CVSS base score
- 7.4
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS probability
- 0.43%
- CWE
- CWE-653
- Published
- 2026-04-02
- Last modified
- 2026-07-15
Affected products
- Red Hat Red Hat build of Keycloak 26.2
- Red Hat Red Hat build of Keycloak 26.2
- Red Hat Red Hat build of Keycloak 26.4
- Red Hat Red Hat build of Keycloak 26.4
Weakness type
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