XXE vulnerability in XSLT parsing in `org.hl7.fhir.publisher`GHSA-8c3x-hq82-gjcm
HIGHFix: HL7/fhir-ig-publisher@3560de2GHSA-8c3x-hq82-gjcm is a high-severity (CVSS 8.6) XML External Entity (XXE) vulnerability in org.hl7.fhir.publisher:org.hl7.fhir.publisher.cli. A fix is available for org.hl7.fhir.publisher:org.hl7.fhir.publisher.cli — see the affected versions and patch details below.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
org.hl7.fhir.publisher:org.hl7.fhir.publisher.cli☕org.hl7.fhir.publisher:org.hl7.fhir.publisher.coreReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
Impact
XSLT transforms performed by various components are 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 org.hl7.fhir.publisher is being used to within a host where external clients can submit XML.
A previous release provided an incomplete solution revealed by new testing.
Patches
This issue has been patched as of version 1.7.4
Workarounds
None
References
Previous Advisory for Incomplete solution MITRE CWE OWASP XML External Entity Prevention Cheat Sheet
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.hl7.fhir.publisher:org.hl7.fhir.publisher.cli | all versions | 1.7.4org.hl7.fhir.publisher:org.hl7.fhir.publisher.cli:1.7.4 |
| ☕Maven | org.hl7.fhir.publisher:org.hl7.fhir.publisher.core | all versions | 1.7.4org.hl7.fhir.publisher:org.hl7.fhir.publisher.core:1.7.4 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.hl7.fhir.publisher:org.hl7.fhir.publisher.cli, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.hl7.fhir.publisher:org.hl7.fhir.publisher.cli to 1.7.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-8c3x-hq82-gjcm is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
Frequently Asked Questions
Is GHSA-8c3x-hq82-gjcm in your dependencies?
Find it across Maven, including transitive dependencies.