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CVE-2026-78224

NextGen Healthcare Mirth Connect Improper Restriction of XML External Entity Reference

HIGH
8.2
CVSS Score
Published: September 11, 2026 at 02:20 PM UTC
Updated: September 18, 2026 at 07:59 PM UTC
1 product affected across 1 vendorMirth Connect

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Severity
HIGH8.2
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

The XSLT Transformer Step builds a bare TransformerFactory without the proper security options set, so XXE injection can allow data exfiltration and denial-of-service attacks.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Mirth Connect· Nextgen Healthcare
60%
v ≤ 4.7.1
Vendor states this is fixed in 4.7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Source: cverecord
https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-253-01
Source: cverecord
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-253-01.json

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.2HIGHicscert
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-611

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