Is ca.uhn.hapi.fhir:org.hl7.fhir.validation affected by CVE-2026-34361?

Maven ca.uhn.hapi.fhir:org.hl7.fhir.validation is affected in <6.9.4.

Is CVE-2026-34361 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.3%.

critical

CVE-2026-34361

Q: Is CVE-2026-34361 being exploited?

Not on the CISA KEV list. EPSS exploit probability is 0.3%.

Maven · ca.uhn.hapi.fhir:org.hl7.fhir.validation

Summary

FHIR Validator HTTP service has SSRF via /loadIG Chains with startsWith() Credential Leak for Authentication Token Theft

Severity: critical
EPSS: 0.3% (p21)
Also known as: GHSA-vr79-8m62-wh98
Published: 2026-03-30

References

https://github.com/hapifhir/org.hl7.fhir.core/security/advisories/GHSA-vr79-8m62-wh98
https://nvd.nist.gov/vuln/detail/CVE-2026-34361
https://github.com/hapifhir/org.hl7.fhir.core

Related advisories

CVE-2026-33180 — critical · Maven/ca.uhn.hapi.fhir:org.hl7.fhir.validation
CVE-2026-55470 — high · Maven/ca.uhn.hapi.fhir:org.hl7.fhir.validation
CVE-2026-45367 — high · Maven/ca.uhn.hapi.fhir:org.hl7.fhir.validation
CVE-2024-51132 — high · Maven/ca.uhn.hapi.fhir:org.hl7.fhir.validation

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Sources: CISA KEV (public domain), OSV.dev & GitHub Advisory Database (CC-BY-4.0), FIRST EPSS, NVD/CWE (public domain). Served live from the Stateward advisory database.