A vulnerability was found in Keycloak. Admin users may have to access sensitive server environment variables and system properties through user-configurable URLs. When configuring backchannel logout URLs or admin URLs, admin users can include placeholders like ${env.VARNAME} or ${PROPNAME}. The server replaces these placeholders with the actual values of environment variables or system properties during URL processing.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| org.keycloak:keycloak-quarkus-server(Maven) | 0 | 26.0.8 | N/A |
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