CVE-2024-51132Public exploitNetwork attack vector

Information disclosure and code execution via external entities

Published Nov 5, 2024 · Updated Nov 6, 2024

XXE in HAPI FHIR before 6.4.0 allows remote attackers to access sensitive information or run code through crafted XML requests. Multiple parsing paths create default DocumentBuilderFactory instances that resolve external entities instead of using the project's XXE-protected factory. Applications must pass attacker-controlled XML into an affected parsing path; resolution can fetch attacker-selected resources in the server's network context.

CVSS severity9.8
Critical
EPSS probability1.90%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XXE in HAPI FHIR before 6.4.0 allows remote attackers to access sensitive information or run code through crafted XML requests. Multiple parsing paths create default DocumentBuilderFactory instances that resolve external entities instead of using the project's XXE-protected factory. Applications must pass attacker-controlled XML into an affected parsing path; resolution can fetch attacker-selected resources in the server's network context.

The record

CVE
CVE-2024-51132
Published
Nov 5, 2024
Updated
Nov 6, 2024
Vendor
HAPI FHIR
Product
HAPI FHIR
Classifications
CWE-611, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 5, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 6, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <6.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

HAPI FHIR · HAPI FHIRversion=0 <6.4.0

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.8GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-611Improper Restriction of XML External Entity Reference
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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