Bug 2448061 (CVE-2026-4282) - CVE-2026-4282 keycloak: Keycloak: Privilege escalation via forged authorization codes due to SingleUseObjectProvider isolation flaw
Summary: CVE-2026-4282 keycloak: Keycloak: Privilege escalation via forged authorizati...
Keywords:
Status: NEW
Alias: CVE-2026-4282
Deadline: 2026-06-09
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-16 15:59 UTC by OSIDB Bzimport
Modified: 2026-04-02 12:36 UTC (History)
9 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-03-16 15:59:31 UTC 
Keycloak's SingleUseObjectProvider is a global flat key-value store used by multiple features without type or namespace isolation. This allows an unauthenticated attacker to forge authorization codes and mint admin-capable access tokens.
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