Resource exhaustion in Hapifhir Ca.uhn.hapi.fhir:org.hl7.fhir.r5
CVE-2026-62296
HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. Prior to 6.9.11, XhtmlParser.java imposes no maximum element nesting depth, so a deeply nested text.div narrative triggers unbounded r…
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 Ca.uhn.hapi.fhir:org.hl7.fhir.validation — versions < 6.9.11
- Hapifhir Ca.uhn.hapi.fhir:org.hl7.fhir.validation.cli — versions < 6.9.11
- Hapifhir Org.hl7.fhir.core — versions < 6.9.11
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_CONFIRM)
Frequently asked questions
- What is CVE-2026-62296?
- CVE-2026-62296 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-2026-62296?
- High severity. CVSS v3 base score is 7.5 out of 10.