CVE-2022-2668: 
Java vulnerability analysis and mitigation

A security vulnerability (CVE-2022-2668) was discovered in Keycloak that allows arbitrary Javascript to be uploaded for the SAML protocol mapper even when the UPLOAD_SCRIPTS feature is disabled. The vulnerability was disclosed on August 5, 2022, and affects Keycloak installations, including Red Hat Single Sign-On 7.6 implementations (NVD, CVE Mitre).

The vulnerability specifically relates to the SAML protocol mapper functionality in Keycloak, where the security control for script uploads could be bypassed. This security issue persists even when the UPLOAD_SCRIPTS feature is explicitly disabled, indicating a bypass of intended security controls (Red Hat Advisory).

The vulnerability could potentially allow attackers to upload and execute arbitrary JavaScript code through the SAML protocol mapper, bypassing the intended security restrictions. This could lead to unauthorized script execution within the Keycloak environment (Debian Tracker).

Red Hat has released security updates to address this vulnerability in Red Hat Single Sign-On 7.6.1. The fix is included in a comprehensive security update that addresses multiple vulnerabilities. Users are advised to upgrade to the latest version of the software (Red Hat Advisory).