What is CVE-2026-34360?

CVE-2026-34360 is a medium-severity vulnerability in Hapifhir Org.hl7.fhir.core, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.8/10. Published 2026-03-31.

How severe is CVE-2026-34360?

Medium severity. CVSS v3 base score is 5.8 out of 10.

SSRF in Hapifhir Org.hl7.fhir.core

CVE-2026-34360

HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. Prior to version 6.9.4, the /loadIG HTTP endpoint in the FHIR Validator HTTP service accepts a user-supplied URL via JSON body and mak…

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.001 (19.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N.

Affected products

Hapifhir Org.hl7.fhir.core — versions < 6.9.4

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

References

https://github.com/hapifhir/org.hl7.fhir.core/security/advisories/GHSA-3ww8-jw56-9f5h (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-34360?: CVE-2026-34360 is a medium-severity vulnerability in Hapifhir Org.hl7.fhir.core, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.8/10. Published 2026-03-31.
How severe is CVE-2026-34360?: Medium severity. CVSS v3 base score is 5.8 out of 10.