Improper Enforcement of Behavioral Workflow Affecting org.keycloak:keycloak-services package, versions [,26.5.2)
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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- published21 Jan 2026
- disclosed21 Jan 2026
- creditAytac Kalinci
Introduced: 21 Jan 2026
CVE-2025-14559 (opens in a new tab)How to fix?
Upgrade org.keycloak:keycloak-services to version 26.5.2 or higher.
Overview
org.keycloak:keycloak-services is an open source identity and access management solution for modern applications and services.
Affected versions of this package are vulnerable to Improper Enforcement of Behavioral Workflow via the Token Exchange implementation. An attacker can obtain access and refresh tokens for users who have been disabled by invoking the token exchange flow with a privileged client, potentially resulting in unauthorized access to previously revoked privileges.
Workaround
This vulnerability can be mitigated by disabling the Token Exchange preview feature if it is not actively required, or by ensuring that only strictly necessary and highly trusted clients are granted the 'impersonation' permission.