CVE-2026-62296 HAPI FHIR: XHTML narrative parser unbounded recursion causes StackOverflow denial of service

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, raisi...

CVE-2026-62295 HAPI FHIR: JSON utility parser unbounded recursion causes StackOverflow denial of service

HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. Prior to 6.9.11, the JSON utility parser in org.hl7.fhir.utilities.json.parser.JsonParser enforces no maximum nesting depth for arrays or objects. As a result, a small but deeply nested,...

ca.uhn.hapi.fhir:org.hl7.fhir.convertors (5.6.20), ca.uhn.hapi.fhir:org.hl7.fhir.dstu2 (5.6.20) +5 more potentially affected by CVE-2026-34359 via ca.uhn.hapi.fhir:org.hl7.fhir.utilities (5.6.20)

ca.uhn.hapi.fhir:org.hl7.fhir.utilities MAVEN version 5.6.20 is affected by a known vulnerability. The following packages have a transitive dependency on ca.uhn.hapi.fhir:org.hl7.fhir.utilities and may be impacted: - ca.uhn.hapi.fhir:org.hl7.fhir.convertors 5.6.20 -...

CVE-2019-12741

XSS exists in the HAPI FHIR testpage overlay module of the HAPI FHIR library before 3.8.0. The attack involves unsanitized HTTP parameters being output in a form page, allowing attackers to leak cookies and other sensitive information from ca/uhn/fhir/to/BaseController.java via a specially crafte...

Ucum-java code issues and vulnerabilities

Ucum-java is a FHIR open source FHIR Java library that provides Ucum services. A code issue vulnerability exists in Ucum-java versions prior to 1.0.9 that stems from the XML parsing performed by the UcumEssenceService being vulnerable to XML external entity injection, resulting in external client...

CVE-2019-12741

XSS exists in the HAPI FHIR testpage overlay module of the HAPI FHIR library before 3.8.0. The attack involves unsanitized HTTP parameters being output in a form page, allowing attackers to leak cookies and other sensitive information from ca/uhn/fhir/to/BaseController.java via a specially crafte...