CVE-2026-62296

A flaw was found in HAPI FHIR, a Java implementation of the HL7 FHIR standard. The XHTML narrative parser does not limit element nesting depth, which allows a deeply nested narrative to trigger unbounded recursion. A remote attacker can exploit this vulnerability by submitting FHIR resources...

ca.uhn.hapi.fhir/hapi-fhir-base: HAPI FHIR: Denial of Service via unbounded recursion in XHTML narrative parser

A flaw was found in HAPI FHIR, a Java implementation of the HL7 FHIR standard. The XHTML narrative parser does not limit element nesting depth, which allows a deeply nested narrative to trigger unbounded recursion. A remote attacker can exploit this vulnerability by submitting FHIR resources...