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Maven

GHSA-6cr6-ph3p-f5rf

HIGH

XXE vulnerability in XSLT transforms in `org.hl7.fhir.core`

Also known asCVE-2024-45294
Published
Sep 6, 2024
Updated
Feb 4, 2026
Affected
6 pkgs
Patched
6 / 6
Exploits
None indexed

EPSS Exploitation Probability

via FIRST.org ↗
1.0%probability of exploitation in next 30 days
Lower Risk57th percentile+0.89%
0.00%0.49%0.98%1.47%0.0%1.0%Dec 25Apr 26Jun 26

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Blast Radius

6 pkgs affected
ca.uhn.hapi.fhir:org.hl7.fhir.dstu2016mayca.uhn.hapi.fhir:org.hl7.fhir.dstu3ca.uhn.hapi.fhir:org.hl7.fhir.r4ca.uhn.hapi.fhir:org.hl7.fhir.r4bca.uhn.hapi.fhir:org.hl7.fhir.r5ca.uhn.hapi.fhir:org.hl7.fhir.utilities

Real-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 ( <!DOCTYPE foo [<!ENTITY example SYSTEM "/etc/passwd"> ]> could produce XML containing data from the host system. This impacts use cases where org.hl7.fhir.core is being used to within a host where external clients can submit XML.

Patches

This issue has been patched in release 6.3.23

Workarounds

None.

References

MITRE CWE OWASP XML External Entity Prevention Cheat Sheet

Affected Packages

6 total 6 fixed
EcosystemPackageVulnerable rangeFix
Mavenca.uhn.hapi.fhir:org.hl7.fhir.dstu2016mayall versions6.3.23
Mavenca.uhn.hapi.fhir:org.hl7.fhir.dstu3all versions6.3.23
Mavenca.uhn.hapi.fhir:org.hl7.fhir.r4all versions6.3.23
Mavenca.uhn.hapi.fhir:org.hl7.fhir.r4ball versions6.3.23
Mavenca.uhn.hapi.fhir:org.hl7.fhir.r5all versions6.3.23
Mavenca.uhn.hapi.fhir:org.hl7.fhir.utilitiesall versions6.3.23

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for ca.uhn.hapi.fhir:org.hl7.fhir.dstu2016may. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update ca.uhn.hapi.fhir:org.hl7.fhir.dstu2016may to 6.3.23 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-6cr6-ph3p-f5rf is resolved across your whole dependency graph.

  3. 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.

  4. How O3 protects you

    O3 pinpoints whether GHSA-6cr6-ph3p-f5rf is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-6cr6-ph3p-f5rf. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Impact XSLT transforms performed by various components are vulnerable to XML external entity injections. A processed XML file with a malicious DTD tag ( `<!DOCTYPE foo [<!ENTITY example SYSTEM "/etc/passwd"> ]>` could produce XML containing data from the host system. This impacts use cases where org.hl7.fhir.core is being used to within a host where external clients can submit XML. ### Patches This issue has been patched in release 6.3.23 ### Workarounds None. ### References [MITRE CWE](https://cwe.mitre.org/data/definitions/611.html) [OWASP XML External Entity Prevention Cheat Sheet](h
O3 Security · Impact-Aware SCA

Is GHSA-6cr6-ph3p-f5rf in your dependencies?

O3 detects GHSA-6cr6-ph3p-f5rf across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.