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.
Metrics
Affected Vendors & Products
References
History
Thu, 02 Apr 2026 15:15:00 +0000
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| Metrics |
ssvc
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Thu, 02 Apr 2026 14:15:00 +0000
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| CPEs | cpe:/a:redhat:build_keycloak:26.4::el9 | |
| References |
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Thu, 02 Apr 2026 13:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Keycloak: keycloak: privilege escalation via forged authorization codes due to singleuseobjectprovider isolation flaw | |
| First Time appeared |
Redhat
Redhat build Keycloak |
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| Weaknesses | CWE-653 | |
| CPEs | cpe:/a:redhat:build_keycloak: | |
| Vendors & Products |
Redhat
Redhat build Keycloak |
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| References |
| |
| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2026-04-02T16:34:56.651Z
Reserved: 2026-03-16T15:53:24.993Z
Link: CVE-2026-4282
Updated: 2026-04-02T14:23:43.727Z
Status : Received
Published: 2026-04-02T13:16:26.680
Modified: 2026-04-02T14:16:33.227
Link: CVE-2026-4282
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OpenCVE Enrichment
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