{"schema":"threatline.record/2","record":{"id":"CVE-2026-102497","aliases":[],"summary":"Apache XMLSchema: Denial of service through cyclic schema definitions in the schema walker","details":"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.\n\nUsers are recommended to upgrade to version 2.3.3, which fixes this issue.","categories":["Unclassified"],"product":"Apache XMLSchema","vendor":"Apache Software Foundation","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-102497","source_modified_at":"2026-09-29T20:13:56.826Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Apache XMLSchema","vendor":"Apache Software Foundation","versions":[{"status":"affected","version":"0","lessThan":"2.3.3","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-102497","source_modified_at":"2026-09-29T20:13:56.826Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Apache XMLSchema","ecosystem":null},"version":"2.3.3","basis":"first unaffected version stated in the CVE record"}],"cvss":7.5,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00528,"percentile":0.4387,"score_date":"2026-10-23"},"published_at":"2026-09-29T11:34:17.292Z","modified_at":"2026-09-29T20:13:56.826Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-102497","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-09-29T20:13:56.826Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-102497","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://lists.apache.org/thread/1cj02tobjyhjqq723bvg78yxkqt1lk7k","tags":["vendor-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CISA ADP","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"partial","assessed_at":"2026-09-29T20:13:25.311609Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-09-29T20:13:56.826Z","content_hash":"ae28486fc922f5f335d26d73644f64ff8f28fb370b716e7266e72a658975498f"}}