Improper Isolation or Compartmentalization Affecting org.keycloak:keycloak-server-spi package, versions [,26.5.7)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published5 Apr 2026
- disclosed2 Apr 2026
- creditUnknown
Introduced: 2 Apr 2026
NewCVE-2026-4282 (opens in a new tab)How to fix?
Upgrade org.keycloak:keycloak-server-spi to version 26.5.7 or higher.
Overview
Affected versions of this package are vulnerable to Improper Isolation or Compartmentalization due to improper type and namespace isolation in the SingleUseObjectProvider. An attacker can obtain unauthorized access by forging authorization codes, which may result in the creation of admin-level access tokens.