CVE-2026-62296
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
HAPI FHIR: XHTML narrative parser unbounded recursion causes StackOverflow denial of service
HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. Prior to 6.9.11, XhtmlParser.java imposes no maximum element nesting depth, so a deeply nested text.div narrative triggers unbounded recursion between parseElementInner() and parseElement(), raising a StackOverflowError. An attacker who can submit FHIR resources containing such narratives can thus crash a parsing or validation worker thread, affecting validator services and any application that parses attacker-supplied FHIR JSON or XML. This issue is fixed in version 6.9.11.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
org.hl7.fhir.core
- Vendor
- hapifhir
- Product
- org.hl7.fhir.core
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| < 6.9.11 | affected | Unavailable | Unavailable | Unavailable | None listed |
ca.uhn.hapi.fhir:org.hl7.fhir.r5
- Vendor
- hapifhir
- Product
- ca.uhn.hapi.fhir:org.hl7.fhir.r5
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| < 6.9.11 | affected | Unavailable | Unavailable | Unavailable | None listed |
ca.uhn.hapi.fhir:org.hl7.fhir.utilities
- Vendor
- hapifhir
- Product
- ca.uhn.hapi.fhir:org.hl7.fhir.utilities
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| < 6.9.11 | affected | Unavailable | Unavailable | Unavailable | None listed |
ca.uhn.hapi.fhir:org.hl7.fhir.validation
- Vendor
- hapifhir
- Product
- ca.uhn.hapi.fhir:org.hl7.fhir.validation
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| < 6.9.11 | affected | Unavailable | Unavailable | Unavailable | None listed |
ca.uhn.hapi.fhir:org.hl7.fhir.validation.cli
- Vendor
- hapifhir
- Product
- ca.uhn.hapi.fhir:org.hl7.fhir.validation.cli
- Platforms
- Unknown
- Default status
Unknown
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| < 6.9.11 | affected | Unavailable | Unavailable | Unavailable | None listed |