{"schema_version": "1.6.1", "id": "CVE-2026-95616", "summary": "Unauthenticated denial of service via integer overflow in DER parsing of X.509 certificate extensions", "details": "An integer overflow in WSS4J's DER bounds check lets an oversized allocation pass validation. An unauthenticated attacker can send a SOAP message carrying an X.509 certificate whose SubjectKeyIdentifier extension declares a length of 0x7FFFFFFF; WSS4J decodes this while resolving the signature's key reference, before the message is authenticated, so an eleven-byte extension triggers a 2 GB allocation. Repeated requests exhaust server memory.\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/sdf0fsphkg4qbj7nh2brjgwvcmd67hct"}]}