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TI-2026-56921 Aliases CVE-2026-82578GHSA-57hc-mr64-vrxx

NextGen Healthcare Mirth Connect Improper Restriction of XML External Entity Reference

Priority MEDIUM 44CWE-611Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-611 and the CVSS impact.

Summary

When XML batch processing is turned on and the XPath option is selected, the raw batch input goes through a default XPath/JAXP setup with no entity restrictions, so XXE injection can allow data exfiltration and denial-of-service attacks.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00409 35th percentileScored 2026-11-07
Fix Fixed Mirth Connect (NextGen Healthcare): 4.7.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
NextGen HealthcareMirth Connectup to 4.7.14.7.2Patch availableCNA
  • Mirth Connect VendorNextGen Healthcare Affected up to 4.7.1 Fixed in 4.7.2 Patch available CNA

Remediation

  • Fix · CNA Mirth Connect (NextGen Healthcare) Fixed in 4.7.2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-82578
  2. 2026-10-03 Alias added: GHSA-57hc-mr64-vrxx

References

Other 2

  • TI-2026-54405 NextGen Healthcare Mirth Connect Improper Restriction of XML External Entity Reference CVSS 4.0HIGH 8.8
  • TI-2026-56925 NextGen Healthcare Mirth Connect SQL Injection CVSS 4.0HIGH 7.2

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences