CVE-2026-45367
Fixed upstream EPSS <1%CVSS 7.5
HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. Prior to 6.9.7, the FHIRPathEngine implementation passes user-controlled regular expressions from matches(), matchesFull(), and replaceMatches() to Java regex operations without effective timeouts, allowing catastrophic backtracking and denial of service. This issue is fixed in version 6.9.7.
Products: hapifhir org.hl7.fhir.core
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| Maven | ca.uhn.hapi.fhir:org.hl7.fhir.dstu2 | 6.9.7 |
| Maven | ca.uhn.hapi.fhir:org.hl7.fhir.dstu2016may | 6.9.7 |
| Maven | ca.uhn.hapi.fhir:org.hl7.fhir.dstu3 | 6.9.7 |
| Maven | ca.uhn.hapi.fhir:org.hl7.fhir.r4 | 6.9.7 |
| Maven | ca.uhn.hapi.fhir:org.hl7.fhir.r4b | 6.9.7 |
| Maven | ca.uhn.hapi.fhir:org.hl7.fhir.r5 | 6.9.7 |
| Maven | ca.uhn.hapi.fhir:org.hl7.fhir.validation | 6.9.7 |
| Maven | ca.uhn.hapi.fhir:org.hl7.fhir.validation.cli | 6.9.7 |