{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-102496", "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "state": "PUBLISHED", "assignerShortName": "apache", "dateReserved": "2026-09-29T10:39:29.739Z", "datePublished": "2026-09-29T11:34:04.111Z", "dateUpdated": "2026-09-29T12:11:26.753Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache", "dateUpdated": "2026-09-29T11:34:04.111Z"}, "title": "Apache XMLSchema: Denial of service through deeply nested schema structures", "source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "Apache Software Foundation", "product": "Apache XMLSchema", "packageURL": "pkg:maven/org.apache.ws.xmlschema/xmlschema-core", "versions": [{"status": "affected", "version": "0", "lessThan": "2.3.3", "versionType": "semver"}], "defaultStatus": "unaffected", "collectionURL": "https://repo.maven.apache.org/maven2", "packageName": "org.apache.ws.xmlschema:xmlschema-core"}], "descriptions": [{"value": "Apache XmlSchema doesn't limit how deeply schema structures can be nested when it builds its schema model, so a malicious schema can make parsing recurse until the stack overflows. This causes a denial of service.\nUsers are recommended to upgrade to version 2.3.3, which fixes this issue.", "lang": "en", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Apache XmlSchema doesn't limit how deeply schema structures can be nested when it builds its schema model, so a malicious schema can make parsing recurse until the stack overflows. This causes a denial of service.<br>Users are recommended to upgrade to version 2.3.3, which fixes this issue."}]}], "references": [{"url": "https://lists.apache.org/thread/9z1vg8wmvwpfw748fb2nb55w4hgbnxol", "tags": ["vendor-advisory"]}], "metrics": [{"other": {"type": "Textual description of severity", "content": {"text": "low"}}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "credits": [{"lang": "en", "value": "This issue was found using Claude agents to study the security of open-source projects", "type": "finder"}], "x_generator": {"engine": "Vulnogram 1.0.3"}}, "adp": [{"title": "CVE Program Container", "references": [{"url": "http://www.openwall.com/lists/oss-security/2026/09/29/16"}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2026-09-29T12:11:26.753Z"}}]}}

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{"affected": [{"affectedData": [{"collectionURL": "https://repo.maven.apache.org/maven2", "defaultStatus": "unaffected", "packageName": "org.apache.ws.xmlschema:xmlschema-core", "packageURL": "pkg:maven/org.apache.ws.xmlschema/xmlschema-core", "product": "Apache XMLSchema", "vendor": "Apache Software Foundation", "versions": [{"lessThan": "2.3.3", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@apache.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Apache XmlSchema doesn't limit how deeply schema structures can be nested when it builds its schema model, so a malicious schema can make parsing recurse until the stack overflows. This causes a denial of service.\nUsers are recommended to upgrade to version 2.3.3, which fixes this issue."}], "id": "CVE-2026-102496", "lastModified": "2026-09-29T13:17:50.730", "metrics": {}, "published": "2026-09-29T12:17:09.727", "references": [{"source": "security@apache.org", "url": "https://lists.apache.org/thread/9z1vg8wmvwpfw748fb2nb55w4hgbnxol"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2026/09/29/16"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Received"}

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