CyberRota Analysis
AI-GeneratedThe JSON utility parser in HAPI FHIR prior to version 6.9.11 is vulnerable to a denial-of-service condition due to the lack of a maximum nesting depth for arrays or objects, allowing attackers to submit deeply nested JSON documents that can cause a StackOverflowError. This can lead to service disruptions and instability in applications that do not handle such errors properly. Organizations utilizing HAPI FHIR for healthcare interoperability should prioritize upgrading to version 6.9.11 to mitigate this high-severity vulnerability.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD Description
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.