CVE-2026-78224 NextGen Healthcare Mirth Connect Improper Restriction of XML External Entity Reference
Attackers can exploit XXE in Mirth Connect's XSLT Transformer to exfiltrate data or cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-78224?
CVE-2026-78224 is a high-severity vulnerability in NextGen Healthcare Mirth Connect, published on 11 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
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.
Weakness: CWE-611
Which versions are affected by CVE-2026-78224?
How do I fix CVE-2026-78224?
No fix has been published for CVE-2026-78224 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-78224 being exploited?
There is no known exploitation of CVE-2026-78224 in the wild and no public exploit code.
Sources
Also known as GHSA-p85c-j652-88pj.