CVE-2026-45367
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.
- CVSS 3.1
- 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS
- 0.7% chance of exploitation in the next 30 days; higher than 52% of CVEs (scores of 2026-10-25)
- CWE
- CWE-1333
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-3653-68v6-rq57 | Maven | ca.uhn.hapi.fhir:org.hl7.fhir.dstu2 | <6.9.7 | 6.9.7 |
| GHSA-3653-68v6-rq57 | Maven | ca.uhn.hapi.fhir:org.hl7.fhir.dstu2016may | <6.9.7 | 6.9.7 |
| GHSA-3653-68v6-rq57 | Maven | ca.uhn.hapi.fhir:org.hl7.fhir.dstu3 | <6.9.7 | 6.9.7 |
| GHSA-3653-68v6-rq57 | Maven | ca.uhn.hapi.fhir:org.hl7.fhir.r4 | <6.9.7 | 6.9.7 |
| GHSA-3653-68v6-rq57 | Maven | ca.uhn.hapi.fhir:org.hl7.fhir.r4b | <6.9.7 | 6.9.7 |
| GHSA-3653-68v6-rq57 | Maven | ca.uhn.hapi.fhir:org.hl7.fhir.r5 | <6.9.7 | 6.9.7 |
| GHSA-3653-68v6-rq57 | Maven | ca.uhn.hapi.fhir:org.hl7.fhir.validation | <6.9.7 | 6.9.7 |
| GHSA-3653-68v6-rq57 | Maven | ca.uhn.hapi.fhir:org.hl7.fhir.validation.cli | <6.9.7 | 6.9.7 |
References
- 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