CVE-2026-34359
Description
HAPI FHIR is a complete implementation of the HL7 FHIR standard for healthcare interoperability in Java. Prior to version 6.9.4, ManagedWebAccessUtils.getServer() uses String.startsWith() to match request URLs against configured server URLs for authentication credential dispatch. Because configured server URLs (e.g., http://tx.fhir.org) lack a trailing slash or host boundary check, an attacker-controlled domain like http://tx.fhir.org.attacker.com matches the prefix and receives Bearer tokens, Basic auth credentials, or API keys when the HTTP client follows a redirect to that domain. This issue has been patched in version 6.9.4.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
ca.uhn.hapi.fhir:org.hl7.fhir.coreMaven | < 6.9.4 | 6.9.4 |
ca.uhn.hapi.fhir:org.hl7.fhir.utilitiesMaven | < 6.9.4 | 6.9.4 |
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
3- github.com/hapifhir/org.hl7.fhir.core/security/advisories/GHSA-fgv2-4q4g-wc35nvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-fgv2-4q4g-wc35ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-34359ghsaADVISORY
News mentions
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