HAPI FHIR: Stored XSS in scan report via unescaped IG and profile titles

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-62293
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-07 20:16:52 UTC
Updated2026-08-07 21:17:29 UTC
DescriptionHAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. Prior to 6.9.11, the hidden scan command concatenates attacker-controlled Implementation Guide titles, profile titles, and source references into scan.html without escaping in Scanner.java. As a result, a user who scans an attacker-supplied IG/profile and then opens or publishes the generated local/CI HTML report can trigger stored cross-site scripting, executing attacker-controlled JavaScript in the report's browser context. This issue is fixed in version 6.9.11.

Risk And Classification

Primary CVSS: v3.1 5 MEDIUM from [email protected]

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

EPSS: 0.001160000 probability, percentile 0.018870000 (date 2026-08-10)

Problem Types: CWE-20 | CWE-79 | CWE-20 CWE-20: Improper Input Validation | CWE-79 CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
3.1CNADECLARED5MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Hapifhir Org.hl7.fhir.core affected < 6.9.11 Not specified
CNA Hapifhir Ca.uhn.hapi.fhirorg.hl7.fhir.validation affected < 6.9.11 Not specified
CNA Hapifhir Ca.uhn.hapi.fhirorg.hl7.fhir.validation.cli affected < 6.9.11 Not specified

References

ReferenceSourceLinkTags
github.com/hapifhir/org.hl7.fhir.core/commit/3a9befd8845f003095ed75f4b24... [email protected] github.com
github.com/hapifhir/org.hl7.fhir.core/security/advisories/GHSA-6vcw-fq7v... 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
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