{"schema_version": "1.6.1", "id": "CVE-2026-42797", "summary": "JexlContextBuilder Information Disclosure", "details": "Exposure of Sensitive Information Through Data Queries vulnerability in Apache Syncope.\n\nAn administrator with adequate entitlements for Derived Schemas can create a malicious JEXL expression which allows any administrator with sufficient entitlements for User read to access User-related security-sensitive information.\n\nThis issue affects Apache Syncope: 3.0 through 3.0.16, 4.0 through 4.0.5, 4.1.0.\n\nUsers are recommended to upgrade to version 4.0.6 / 4.1.1, which fix this issue by further restricting the JEXL expression definition.", "affected": [{"ranges": [{"type": "SEMVER", "events": [{"introduced": "3.0"}, {"last_affected": "3.0"}]}, {"type": "SEMVER", "events": [{"introduced": "4.0"}, {"last_affected": "4.0"}]}, {"type": "SEMVER", "events": [{"introduced": "4.1"}, {"last_affected": "4.1"}]}]}], "references": [{"type": "WEB", "url": "https://lists.apache.org/thread/5y7d277sntyytrmxnx2tfjr9ftcpq1s6"}]}