{"schema_version":"1","data":[{"id":4006,"advisory_id":"918d6e24-0c79-4966-a7b0-eb1fb7fa19d7","revision":1,"source_id":"core-cve","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-102497","source_published_at":"2026-09-29T11:34:17.292+00:00","published_at":"2026-10-24T21:44:51.92941+00:00","extraction_method":"structured","technologies":["apache-xmlschema","core-cve"],"cve_ids":["CVE-2026-102497"],"event_types":["advisory"],"payload":{"kind":"advisory","title":"Apache XMLSchema: Denial of service through cyclic schema definitions in the schema walker","summary":"The Apache XmlSchema walker (xmlschema-walker) doesn't detect cycles in type derivation, substitution groups, model groups or attribute groups. A malicious schema with such a cycle can make the walker recurse until the stack overflows, causing a denial of service. Users are recommended to upgrade to version 2.3.3, which fixes this issue.","evidence":"cve:CVE-2026-102497","products":[{"name":{"value":"Apache XMLSchema","evidence":"/containers/cna/affected/0/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"unknown","structured":{"id":"CVE-2026-102497","aliases":["CVE-2026-102497"],"metrics":[{"other":{"type":"Textual description of severity","content":{"text":"low"}},"scenarios":[{"lang":"en","value":"GENERAL"}]}],"affected":[{"vendor":"Apache Software Foundation","product":"Apache XMLSchema","versions":[{"status":"affected","version":"0","lessThan":"2.3.3","versionType":"semver"}],"packageURL":"pkg:maven/org.apache.ws.xmlschema/xmlschema-walker","packageName":"org.apache.ws.xmlschema:xmlschema-walker","collectionURL":"https://repo.maven.apache.org/maven2","defaultStatus":"unaffected"}],"modified":"2026-09-29T20:13:56.826Z","provider":"cve","references":["https://lists.apache.org/thread/1cj02tobjyhjqq723bvg78yxkqt1lk7k"],"provider_metadata":{"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/09/29/17"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2026-09-29T12:11:28.071Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"id":"CVE-2026-102497","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-09-29T20:13:25.311609Z"}}}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","cweId":"CWE-674","description":"CWE-674 Uncontrolled Recursion"}]}],"providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-29T20:13:56.826Z"}}],"cna":{"orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","shortName":"apache","dateUpdated":"2026-09-29T11:34:17.292Z"}}},"related_cves":[{"value":"CVE-2026-102497","evidence":"/cveMetadata/cveId"}],"security_relevant":true,"severity_evidence":null}}],"next_after":4006,"next_before":4006}