Vulnerability · Published Sep 11, 2026 · Assigned by icscert
CVE-2026-78224NextGen Healthcare Mirth Connect Improper Restriction of XML External Entity Reference
High 8.2
In plain English
A high-severity XML external entity in Mirth Connect from NextGen Healthcare. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities).
Severity (CVSS 3.1)8.2High
Exploit odds (30 days)0.4%top 61.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| NextGen Healthcare | Mirth Connect | 0 – through 4.7.1 |
Weakness: CWE-611 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L