Security readout for executives and security teams
Plain-English summary
CVE-2021-32053 is an availability flaw in HAPI FHIR JPA Server before 5.4.0. History requests can trigger expensive database counting work, consuming substantial server resources when repeated concurrently. For organizations using HAPI FHIR for clinical or operational data exchange, the main business risk is service disruption, not data theft.
Executive priority
Prioritize if HAPI FHIR supports patient care, integrations, or customer-facing APIs. The available evidence supports availability risk, but not active exploitation or confidentiality impact.
Technical view
The issue is in HAPI FHIR JPA Server history request handling before 5.4.0. A SELECT COUNT statement can require a full index scan, and simultaneous history requests can consume large resources. The CVE states database access may remain disabled even after the attack stops.
Likely exposure
Exposure is most likely where HAPI FHIR JPA Server versions before 5.4.0 are deployed and reachable by users who can issue history requests. The source bundle does not identify specific CPEs or downstream products.
Exploitation context
The source bundle does not cite active exploitation, public exploit use, or CISA KEV listing. The described impact is denial of service through resource-heavy history requests, especially when many requests occur concurrently.
Researcher notes
Evidence is narrow but consistent: the CVE description, GitHub issue, and pull request point to expensive database behavior in history requests before 5.4.0. No CVSS vector, CWE, CPE, or KEV signal is provided in the bundle.
Mitigation direction
- Identify HAPI FHIR JPA Server deployments and versions.
- Upgrade affected HAPI FHIR JPA Server instances to 5.4.0 or later.
- Review HAPI FHIR issue 2641 and pull request 2642 for fix context.
- Check current vendor guidance before applying compensating controls.
Validation and detection
- Confirm deployed HAPI FHIR JPA Server version is 5.4.0 or later.
- Inventory externally reachable FHIR endpoints that support history requests.
- Review logs for unusual concurrent history request volume.
- Monitor database load and availability during history request activity.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Database behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-32053 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://hapifhir.io/CVE reference · x_refsource_MISC
- https://github.com/hapifhir/hapi-fhir/issues/2641CVE reference · x_refsource_MISC
- https://github.com/hapifhir/hapi-fhir/pull/2642CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.