CVE-2026-62295
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: JSON utility 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, the JSON utility parser in org.hl7.fhir.utilities.json.parser.JsonParser enforces no maximum nesting depth for arrays or objects. As a result, a small but deeply nested, syntactically valid FHIR JSON document can trigger unbounded readArray() or readObject() recursion, raising a StackOverflowError before structural validation runs. An attacker who can submit JSON resources for validation can thus crash the request thread, and services that do not isolate StackOverflowError safely may experience worker loss or process instability — a denial-of-service condition. 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 |