What is CVE-2026-33180?

CVE-2026-33180 is a high-severity vulnerability in Hapifhir Org.hl7.fhir.core, classified under Information Disclosure. CVSS score: 7.5/10. Published 2026-03-20.

How severe is CVE-2026-33180?

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

Information disclosure in Hapifhir Org.hl7.fhir.core

CVE-2026-33180

HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. Prior to version 6.9.0, when setting headers in HTTP requests, the internal HTTP client sends headers first to the host in the initial…

Vulnerability class: Information Disclosure

EPSS: 0.000 (14.6th percentile) — read the EPSS interpretation.

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:H/I:N/A:N.

Affected products

Hapifhir Org.hl7.fhir.core — versions < 6.9.0

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

https://github.com/hapifhir/org.hl7.fhir.core/security/advisories/GHSA-p7m9-v2cm-2h7m (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-33180?: CVE-2026-33180 is a high-severity vulnerability in Hapifhir Org.hl7.fhir.core, classified under Information Disclosure. CVSS score: 7.5/10. Published 2026-03-20.
How severe is CVE-2026-33180?: High severity. CVSS v3 base score is 7.5 out of 10.