HAPI FHIR: Stored XSS in scan report via unescaped IG and profile titles (CVE-2026-62293) | HOL Guard CVE

Medium · CVSS 5.0CVE-2026-62293

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

Answer in brief

CVE-2026-62293 records a Medium severity (CVSS 5.0) vulnerability in HAPI FHIR: Stored XSS in scan report via unescaped IG and profile titles. The current sources do not mark it as known exploited. The current feed maps hapifhir/ca.uhn.hapi.fhir:org.hl7.fhir.validation (generic), hapifhir/ca.uhn.hapi.fhir:org.hl7.fhir.validation.cli (generic), hapifhir/org.hl7.fhir.core (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 7, 2026Updated Sep 9, 2026Source checked Sep 21, 2026First seen by HOL Aug 7, 2026Material review Sep 9, 2026

Upstream Advisory

Key facts

Risk: Medium · CVSS 5.0
Exploitation: Not marked as known exploited
Affected software: 3 mapped packages or products
Fix availability: Not reported

Why this deserves its current priority

CVSS is 5.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps hapifhir/ca.uhn.hapi.fhir:org.hl7.fhir.validation (generic), hapifhir/ca.uhn.hapi.fhir:org.hl7.fhir.validation.cli (generic), hapifhir/org.hl7.fhir.core (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
hapifhir/ca.uhn.hapi.fhir:org.hl7.fhir.validationgeneric	< 6.9.11	Not reported
hapifhir/ca.uhn.hapi.fhir:org.hl7.fhir.validation.cligeneric	< 6.9.11	Not reported
hapifhir/org.hl7.fhir.coregeneric	< 6.9.11	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for hapifhir/ca.uhn.hapi.fhir:org.hl7.fhir.validation, hapifhir/ca.uhn.hapi.fhir:org.hl7.fhir.validation.cli, hapifhir/org.hl7.fhir.core.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Aug 7, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 9, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 7, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.