CVE-2026-62293

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

State: Published
Severity: 5.0 Medium
Published: Aug 7, 2026
Updated: Aug 7, 2026
Reserved: Jul 13, 2026

Description

HAPI 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.

Scores

CVSS	Score	Vector	Source
3.1	5.0 Medium	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N	GitHub_M

Weaknesses

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

Affected Products

Product	Versions
org.hl7.fhir.corehapifhir	< 6.9.11Affected
ca.uhn.hapi.fhir:org.hl7.fhir.validationhapifhir	< 6.9.11Affected
ca.uhn.hapi.fhir:org.hl7.fhir.validation.clihapifhir	< 6.9.11Affected

References

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