CVE-2021-32053

Name: CVE-2021-32053
Creator: NVD / NIST
Published: 2021-05-10T21:15:07.883+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 1.59%

Last modified Jun 17, 2026

CVE-2021-32053 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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.. EPSS estimates a 1.59% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS Probability

1.59%

72.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-400

Affected Software

Vendor	Product	Versions
Fhir	Hapi Fhir	< 5.4.0

References

https://github.com/hapifhir/hapi-fhir/issues/2641Third Party Advisory
https://github.com/hapifhir/hapi-fhir/pull/2642Patch, Third Party Advisory
https://hapifhir.ioVendor Advisory
https://github.com/hapifhir/hapi-fhir/issues/2641Third Party Advisory
https://github.com/hapifhir/hapi-fhir/pull/2642Patch, Third Party Advisory
https://hapifhir.ioVendor Advisory

Timeline

Published: May 10, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-32053?

How severe is CVE-2021-32053?

CVE-2021-32053 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.59% probability of exploitation in the next 30 days.

How do I fix CVE-2021-32053?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-32053?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST