CVE-2026-33180

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 82% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.5Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 URL but also, if asked to follow redirects and a 30X HTTP response code is returned, to the host mentioned in URL in the Location: response header value. Sending the same set of headers to subsequent hosts is a problem as this header often contains privacy sensitive information or data that could allow others to impersonate the client's request. This issue has been patched in release 6.9.0. No known workarounds are available.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
18.1%
KEV
Not listed

Published

March 20, 2026

Last Modified

July 15, 2026

Advisory Details (1)

Auto-updated Jun 10, 2026
Patch available. Sources: github.
github Patch Available

HTTP authentication leak in redirects · Advisory · hapifhir/org.hl7.fhir.core · GitHub

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

Affected Packages

(12 across 1 ecosystem)
Maven(12)
PackageVulnerable rangeFixed inDependents
ca.uhn.hapi.fhir:org.hl7.fhir.convertors0.0.1 ... 6.8.2 (379 versions)6.9.0—
ca.uhn.hapi.fhir:org.hl7.fhir.dstu20.0.1 ... 6.8.2 (379 versions)6.9.0—
ca.uhn.hapi.fhir:org.hl7.fhir.dstu2016may0.0.1 ... 6.8.2 (379 versions)6.9.0—
ca.uhn.hapi.fhir:org.hl7.fhir.dstu30.0.1 ... 6.8.2 (379 versions)6.9.0—
ca.uhn.hapi.fhir:org.hl7.fhir.dstu3.support6.6.0 ... 6.8.2 (23 versions)6.9.0—
ca.uhn.hapi.fhir:org.hl7.fhir.model6.5.25 ... 6.8.2 (27 versions)6.9.0—
ca.uhn.hapi.fhir:org.hl7.fhir.r40.0.1 ... 6.8.2 (379 versions)6.9.0—
ca.uhn.hapi.fhir:org.hl7.fhir.r4b5.6.100 ... 6.8.2 (252 versions)6.9.0—
ca.uhn.hapi.fhir:org.hl7.fhir.r50.0.1 ... 6.8.2 (379 versions)6.9.0—
ca.uhn.hapi.fhir:org.hl7.fhir.utilities0.0.1 ... 6.8.2 (379 versions)6.9.0—
ca.uhn.hapi.fhir:org.hl7.fhir.validation0.0.1 ... 6.8.2 (379 versions)6.9.0—
ca.uhn.hapi.fhir:org.hl7.fhir.validation.cli4.0.0 ... 5.0.0 (7 versions)6.9.0—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 43× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 101 total refreshes for this CVE.

  1. 2026-07-23 03:09 UTCEG score recompute
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Frequently asked(5)

What is CVE-2026-33180?
CVE-2026-33180 is a high vulnerability published on March 20, 2026. 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 URL but also, if asked to follow redirects and a 30X HTTP…
When was CVE-2026-33180 disclosed?
CVE-2026-33180 was first published in the National Vulnerability Database on March 20, 2026, with the most recent update on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-33180 actively exploited?
CVE-2026-33180 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 18.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-33180?
CVE-2026-33180 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-33180?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-33180, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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