{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-62296", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-13T18:37:08.488Z", "datePublished": "2026-08-07T20:03:17.024Z", "dateUpdated": "2026-08-07T20:03:17.024Z"}, "containers": {"cna": {"title": "HAPI FHIR: XHTML narrative parser unbounded recursion causes StackOverflow denial of service", "problemTypes": [{"descriptions": [{"cweId": "CWE-20", "lang": "en", "description": "CWE-20: Improper Input Validation", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-400", "lang": "en", "description": "CWE-400: Uncontrolled Resource Consumption", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-674", "lang": "en", "description": "CWE-674: Uncontrolled Recursion", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}}], "references": [{"name": "https://github.com/hapifhir/org.hl7.fhir.core/security/advisories/GHSA-5v24-q6x8-hc38", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/hapifhir/org.hl7.fhir.core/security/advisories/GHSA-5v24-q6x8-hc38"}, {"name": "https://github.com/hapifhir/org.hl7.fhir.core/commit/396f447500407693d6ae1e64db59782862ca7506", "tags": ["x_refsource_MISC"], "url": "https://github.com/hapifhir/org.hl7.fhir.core/commit/396f447500407693d6ae1e64db59782862ca7506"}], "affected": [{"vendor": "hapifhir", "product": "org.hl7.fhir.core", "versions": [{"version": "< 6.9.11", "status": "affected"}]}, {"vendor": "hapifhir", "product": "ca.uhn.hapi.fhir:org.hl7.fhir.r5", "versions": [{"version": "< 6.9.11", "status": "affected"}]}, {"vendor": "hapifhir", "product": "ca.uhn.hapi.fhir:org.hl7.fhir.utilities", "versions": [{"version": "< 6.9.11", "status": "affected"}]}, {"vendor": "hapifhir", "product": "ca.uhn.hapi.fhir:org.hl7.fhir.validation", "versions": [{"version": "< 6.9.11", "status": "affected"}]}, {"vendor": "hapifhir", "product": "ca.uhn.hapi.fhir:org.hl7.fhir.validation.cli", "versions": [{"version": "< 6.9.11", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-07T20:03:17.024Z"}, "descriptions": [{"lang": "en", "value": "HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. Prior to 6.9.11, XhtmlParser.java imposes no maximum element nesting depth, so a deeply nested text.div narrative triggers unbounded recursion between parseElementInner() and parseElement(), raising a StackOverflowError. An attacker who can submit FHIR resources containing such narratives can thus crash a parsing or validation worker thread, affecting validator services and any application that parses attacker-supplied FHIR JSON or XML. This issue is fixed in version 6.9.11."}], "source": {"advisory": "GHSA-5v24-q6x8-hc38", "discovery": "UNKNOWN"}}}}

{}

{}

{}

{"created": "2026-08-07T21:30:18.186562+00:00", "updated": "2026-08-07T21:30:18.186568+00:00", "vendors": []}