CVE-2024-55887: Fhir Ucum-Java

High severity, CVSS 8.6. EPSS: 0.6% chance of exploitation in the next 30 days.

Ucum-java is a FHIR Java library providing UCUM Services. In versions prior to 1.0.9, XML parsing performed by the UcumEssenceService is vulnerable to XML external entity injections. A processed XML file with a malicious DTD tag could produce XML containing data from the host system. This impacts use cases where ucum is being used to within a host where external clients can submit XML. Release 1.0.9 of Ucum-java fixes this vulnerability. As a workaround, ensure that the source xml for instantiating UcumEssenceService is trusted.

Affected products

• Fhir Ucum-Java: before 1.0.9 (fixed in 1.0.9)

Published 2024-12-13. Last modified 2026-06-17.