Vulnerability DatabaseCVE-2021-32053
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CVE-2021-32053
Published:May 10, 2021
Updated:July 21, 2026
JPA Server in HAPI FHIR before 5.4.0 allows a user to deny service (e.g., disable access to the database after the attack stops) via history requests. This occurs because of a SELECT COUNT statement that requires a full index scan, with an accompanying large amount of server resources if there are many simultaneous history requests.
Affected Packages
ca.uhn.hapi.fhir:hapi-fhir-jpaserver-base (JAVA):
Affected version(s) >=0.9 <5.4.0
Fix Suggestion:
Update to version 5.4.0
Related Resources (4)
https://github.com/hapifhir/hapi-fhir/pull/2642
https://hapifhir.io
https://nvd.nist.gov/vuln/detail/CVE-2021-32053
https://github.com/hapifhir/hapi-fhir/issues/2641
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CVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Weakness Type (CWE)
Uncontrolled Resource Consumption
CWE-400
EPSS
Base Score:
1.59