{"schema_version": "1.6.1", "id": "CVE-2026-87830", "summary": "Streaming WS-SecurityPolicy validation may skip element-protection checks.", "details": "In the StAX streaming WS-SecurityPolicy validator, certain relative or unsupported XPath expressions can be converted into paths that never match the actual XML element path. A remote SOAP peer may therefore send a required element without the expected signature or encryption.\nUsers are recommended to upgrade to versions 4.0.2 or 3.0.6 or 2.4.4, which fix this issue.", "affected": [{"ranges": [{"type": "SEMVER", "events": [{"introduced": "4.0.0"}, {"fixed": "4.0.2"}]}, {"type": "SEMVER", "events": [{"introduced": "3.0.0"}, {"fixed": "3.0.6"}]}, {"type": "SEMVER", "events": [{"introduced": "0"}, {"fixed": "2.4.4"}]}]}], "references": [{"type": "WEB", "url": "https://lists.apache.org/thread.html/lwlozb1x20d16f9dnyvoygc9rrhzq2vn"}]}