What is CVE-2026-62295?

CVE-2026-62295 is a high-severity vulnerability in Hapifhir Ca.uhn.hapi.fhir:org.hl7.fhir.r5, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2026-08-07.

How severe is CVE-2026-62295?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Hapifhir Ca.uhn.hapi.fhir:org.hl7.fhir.r5

CVE-2026-62295

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…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Hapifhir Ca.uhn.hapi.fhir:org.hl7.fhir.r5 — versions < 6.9.11
Hapifhir Ca.uhn.hapi.fhir:org.hl7.fhir.utilities — versions < 6.9.11
Hapifhir Org.hl7.fhir.core — versions < 6.9.11

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_CONFIRM)
security-advisories@github.com (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-62295?: CVE-2026-62295 is a high-severity vulnerability in Hapifhir Ca.uhn.hapi.fhir:org.hl7.fhir.r5, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2026-08-07.
How severe is CVE-2026-62295?: High severity. CVSS v3 base score is 7.5 out of 10.