High severity7.5GHSA Advisory· Published Jul 16, 2026· Updated Jul 18, 2026
CVE-2026-45367
CVE-2026-45367
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
ca.uhn.hapi.fhir:org.hl7.fhir.dstu2Maven | < 6.9.7 | 6.9.7 |
ca.uhn.hapi.fhir:org.hl7.fhir.dstu2016mayMaven | < 6.9.7 | 6.9.7 |
ca.uhn.hapi.fhir:org.hl7.fhir.dstu3Maven | < 6.9.7 | 6.9.7 |
ca.uhn.hapi.fhir:org.hl7.fhir.r4Maven | < 6.9.7 | 6.9.7 |
ca.uhn.hapi.fhir:org.hl7.fhir.r4bMaven | < 6.9.7 | 6.9.7 |
ca.uhn.hapi.fhir:org.hl7.fhir.r5Maven | < 6.9.7 | 6.9.7 |
ca.uhn.hapi.fhir:org.hl7.fhir.validationMaven | < 6.9.7 | 6.9.7 |
ca.uhn.hapi.fhir:org.hl7.fhir.validation.cliMaven | < 6.9.7 | 6.9.7 |
Affected products
1- Range: <= 6.9.6
Patches
Vulnerability mechanics
References
7- github.com/advisories/GHSA-3653-68v6-rq57ghsaADVISORY
- github.com/hapifhir/org.hl7.fhir.core/security/advisories/GHSA-3653-68v6-rq57nvdWEB
- github.com/hapifhir/org.hl7.fhir.core/commit/275d015c680ce9f90cbe285596e50118e472bf24nvd
- github.com/hapifhir/org.hl7.fhir.core/commit/e08982d2b6f6dcd6c670a762d9cf999179fbe4ednvd
- github.com/hapifhir/org.hl7.fhir.core/pull/2403nvd
- github.com/hapifhir/org.hl7.fhir.core/pull/2463nvd
- github.com/hapifhir/org.hl7.fhir.core/releases/tag/6.9.7nvd
News mentions
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