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CVE-2021-32053

19
FAUCET Score

CVE-2021-32053 is a denial-of-service vulnerability affecting HAPI FHIR JPA Server versions prior to 5.4.0. An unauthenticated attacker can exploit this by sending multiple history requests, triggering resource-intensive database queries that can disable database access. Rated Medium (CVSS 5.3), the attack is network-based and low complexity, leading to a loss of availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.4.0CPE matchmatch criteria
cpe:2.3:a:fhir:hapi_fhir:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.59%
Probability of exploitation in next 30 days
EPSS Percentile
73.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0159 is in the 57th percentile among its peer group of 23,701 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
mavenpatch availablevia ghsa
Product: ca.uhn.hapi.fhir:hapi-fhir-jpaserver-baseFixed in: 5.4.0

Vendor Advisories (1)

mavenGHSA-67f6-c8mx-4q2mmedium

Uncontrolled Resource Consumption in JPA Server in HAPI FHIR

Jun 16, 2021

References

github.com / hapifhir/hapi-fhir/issues/2641
Third Party Advisory
github.com / hapifhir/hapi-fhir/pull/2642
PatchThird Party Advisory
hapifhir.io
Vendor Advisory