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CVE-2024-52007· NVD / CVE Program· CNA GitHub_M

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

HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. XSLT parsing 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. This is related to GHSA-6cr6-ph3p-f5rf, in which its fix (#1571 & #1717) was incomplete. This issue has been addressed in release version 6.4.0 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

HighCVSS 8.6 · v3.1—No exploit Fix available
Published
Nov 8, 2024
Updated
Jun 17, 2026
EPSS
0.9% · 58th percentile
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Report tools

JSON

Action score

34

Monitor

Low priority for now.

CVSS
34 / 40 · 8.6 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.9%

CISA SSVC decision

Exploitation
none
Automatable
yes
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · GitHub_M
8.6
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
hapifhirhl7 fhir core

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

  • hapifhir org.hl7.fhir.core

    • < 6.4.0affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Mavenca.uhn.hapi.fhir:org.hl7.fhir.dstu2016maybefore 6.3.236.3.23
Mavenca.uhn.hapi.fhir:org.hl7.fhir.dstu2016maybefore 6.4.06.4.0
Mavenca.uhn.hapi.fhir:org.hl7.fhir.dstu3before 6.4.06.4.0
Mavenca.uhn.hapi.fhir:org.hl7.fhir.dstu3before 6.3.236.3.23
Mavenca.uhn.hapi.fhir:org.hl7.fhir.r4before 6.4.06.4.0
Mavenca.uhn.hapi.fhir:org.hl7.fhir.r4before 6.3.236.3.23
Mavenca.uhn.hapi.fhir:org.hl7.fhir.r4bbefore 6.3.236.3.23
Mavenca.uhn.hapi.fhir:org.hl7.fhir.r4bbefore 6.4.06.4.0
Mavenca.uhn.hapi.fhir:org.hl7.fhir.r5before 6.3.236.3.23
Mavenca.uhn.hapi.fhir:org.hl7.fhir.r5before 6.4.06.4.0
Mavenca.uhn.hapi.fhir:org.hl7.fhir.utilitiesbefore 6.4.06.4.0
Mavenca.uhn.hapi.fhir:org.hl7.fhir.utilitiesbefore 6.3.236.3.23

Same product

hapifhir: all records

Other highest-scoring records for the same primary product.

  • CVE-2024-45294`org.hl7.fhir.core` XXE vulnerability in XSLT transforms
    34Monitor
  • CVE-2026-81876HAPI FHIR: SHCParser DEFLATE infinite loop causes denial of service
    30Monitor
  • CVE-2026-81875HAPI FHIR: SHCParser unbounded DEFLATE decompression causes denial of service
    30Monitor
  • CVE-2026-62296HAPI FHIR: XHTML narrative parser unbounded recursion causes StackOverflow denial of service
    30Monitor
  • CVE-2026-62295HAPI FHIR: JSON utility parser unbounded recursion causes StackOverflow denial of service
    30Monitor
  • CVE-2026-49485HAPI FHIR: ReDoS via FHIRPath matches()/replaceMatches() in FHIR Validator HTTP Endpoint
    30Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Maven:ca.uhn.hapi.fhir:org.hl7.fhir.dstu2016may6.3.23Package registry (OSV)
Maven:ca.uhn.hapi.fhir:org.hl7.fhir.dstu2016may6.4.0Package registry (OSV)
Maven:ca.uhn.hapi.fhir:org.hl7.fhir.dstu36.3.23Package registry (OSV)
Maven:ca.uhn.hapi.fhir:org.hl7.fhir.dstu36.4.0Package registry (OSV)
Maven:ca.uhn.hapi.fhir:org.hl7.fhir.r46.3.23Package registry (OSV)
Maven:ca.uhn.hapi.fhir:org.hl7.fhir.r46.4.0Package registry (OSV)
Maven:ca.uhn.hapi.fhir:org.hl7.fhir.r4b6.3.23Package registry (OSV)
Maven:ca.uhn.hapi.fhir:org.hl7.fhir.r4b6.4.0Package registry (OSV)
Maven:ca.uhn.hapi.fhir:org.hl7.fhir.r56.3.23Package registry (OSV)
Maven:ca.uhn.hapi.fhir:org.hl7.fhir.r56.4.0Package registry (OSV)
Maven:ca.uhn.hapi.fhir:org.hl7.fhir.utilities6.3.23Package registry (OSV)
Maven:ca.uhn.hapi.fhir:org.hl7.fhir.utilities6.4.0Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2024-4529463 days apart`org.hl7.fhir.core` XXE vulnerability in XSLT transforms
    34Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
none

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Changed
Confidentiality impact
High
Integrity impact
None
Availability impact
None

Weakness class (CWE)

CWE-611 · Improper Restriction of XML External Entity Reference

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Noroxi analysis

No Noroxi analysis for this record yet

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Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records