XML External Entity (XXE)Weakness · CWE-611

CVE-2024-51132

CRITICAL · 9.8 CVSS v3.1 Published 2024-11-05
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
An XML External Entity (XXE) vulnerability in HAPI FHIR before v6.4.0 allows attackers to access sensitive information or execute arbitrary code via supplying a crafted request containing malicious XML entities.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

This is an XML External Entity (XXE) vulnerability in HAPI FHIR, a Java-based FHIR (Fast Healthcare Interoperability Resources) library. The flaw allows attackers to supply crafted XML requests containing malicious external entity references, potentially enabling unauthorized access to sensitive system files or remote code execution on the server.

MitigationUpgrade HAPI FHIR to version 6.4.0 or later. Additionally, disable external entity processing and enable secure XML parser configurations (e.g., set FEATURE_SECURE_PROCESSING) in XML processors handling untrusted input.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify HAPI FHIR library version
    Check your project's dependency management: for Maven, run 'mvn dependency:tree | grep hapi-fhir' or inspect pom.xml; for Gradle, run 'gradle dependencies | grep hapi-fhir'; for deployed applications, check the JAR file manifest (META-INF/MANIFEST.MF) or the hapi-fhir-base JAR's version attribute
    Affected if The installed version is lower than 6.4.0 (versions before 6.4.0 are affected)
  2. Confirm XML input processing is enabled
    Review your application code for FHIR resource parsing that handles XML format (e.g., FhirContext.newXmlParser(), ParserForXml, or any code path that calls parser.parseResource() on XML content)
    Affected if Your application accepts and parses XML-formatted FHIR resources from external sources
  3. Verify XML parser security configuration
    Inspect XML parser setup code for whether external entity processing is explicitly disabled. Look for parser.setFeature("http://apache.org/xml/features/disallow-doctype-decl", true) or similar secure configuration, or check if FEATURE_SECURE_PROCESSING is enabled via parser.setFeature(XMLConstants.FEATURE_SECURE_PROCESSING, true)
    Affected if External entity processing is allowed or no secure XML parser features are configured (the vulnerability requires untrusted XML with malicious DTD/entities to be parsed)

You are affected if HAPI FHIR version is below 6.4.0 AND your application processes XML input from untrusted sources without secure XML parser configuration.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Upgrade HAPI FHIR to version 6.4.0 or later. Additionally, disable external entity processing and enable secure XML parser configurations (e.g., set FEATURE_SECURE_PROCESSING) in XML processors handling untrusted input.

Recommended fix High confidence

HAPI FHIR v6.4.0 or later

  1. Upgrade HAPI FHIR to version 6.4.0 or later to resolve the XXE vulnerability
  2. Verify the upgrade in a test environment before deploying to production
  3. After upgrading, validate that XML parsing configurations disable external entity processing as a defense-in-depth measure

Generated from the published advisory — verify against the referenced sources before acting.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation2.0 h
  • Testing8.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,320
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Scan for this in your stack

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dbcve dependency scanner

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-51132 in production — separate from our analysis above.

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What this is

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