CVEvulnerability
CVE-2026-4282
7.4 HIGH
Official page ↗
- Status
- Modified
- Published
- 2026-04-02
- Last modified
- 2026-10-26
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.4 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
- 7.4 HIGH — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- Weaknesses
- CWE-653
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.
Affected configurations
• redhat build of keycloak
• redhat build of keycloak 26.2
• redhat build of keycloak 26.2.15
• redhat build of keycloak 26.4
• redhat build of keycloak 26.4.11
Related
Weakness · CWE (1)
- CWE-653 Improper Isolation or Compartmentalization weakness
References
- https://access.redhat.com/errata/RHSA-2026:6475 Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:6476 Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:6477 Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:6478 Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-4282 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2448061 Issue Tracking, Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:6475 Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:6476 Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:6477 Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:6478 Vendor Advisory
- https://access.redhat.com/security/cve/CVE-2026-4282 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2448061 Issue Tracking, Vendor Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4282.json security.access.redhat.com