high7.5
CVE-2026-45367
HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java.
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | ca.uhn.hapi.fhir:org.hl7.fhir.dstu2 | <= 6.9.6 | 6.9.7 |
| maven | ca.uhn.hapi.fhir:org.hl7.fhir.dstu2016may | <= 6.9.6 | 6.9.7 |
| maven | ca.uhn.hapi.fhir:org.hl7.fhir.dstu3 | <= 6.9.6 | 6.9.7 |
| maven | ca.uhn.hapi.fhir:org.hl7.fhir.r4 | <= 6.9.6 | 6.9.7 |
| maven | ca.uhn.hapi.fhir:org.hl7.fhir.r4b | <= 6.9.6 | 6.9.7 |
| maven | ca.uhn.hapi.fhir:org.hl7.fhir.r5 | <= 6.9.6 | 6.9.7 |
| maven | ca.uhn.hapi.fhir:org.hl7.fhir.validation | <= 6.9.6 | 6.9.7 |
| maven | ca.uhn.hapi.fhir:org.hl7.fhir.validation.cli | <= 6.9.6 | 6.9.7 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-3653-68v6-rq57
- https://github.com/hapifhir/org.hl7.fhir.core/security/advisories/GHSA-3653-68v6-rq57
- https://github.com/hapifhir/org.hl7.fhir.core/commit/275d015c680ce9f90cbe285596e50118e472bf24
- https://github.com/hapifhir/org.hl7.fhir.core/commit/e08982d2b6f6dcd6c670a762d9cf999179fbe4ed
- https://github.com/hapifhir/org.hl7.fhir.core/pull/2403
- https://github.com/hapifhir/org.hl7.fhir.core/pull/2463
- https://github.com/hapifhir/org.hl7.fhir.core/releases/tag/6.9.7