CVE-2026-82578 NextGen Healthcare Mirth Connect Improper Restriction of XML External Entity Reference
Attackers can exploit XXE in Mirth Connect when XML batch processing is enabled 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-2026-82578?
CVE-2026-82578 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
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.
Weakness: CWE-611
Which versions are affected by CVE-2026-82578?
How do I fix CVE-2026-82578?
No fix has been published for CVE-2026-82578 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-82578 being exploited?
There is no known exploitation of CVE-2026-82578 in the wild and no public exploit code.
Sources
Also known as GHSA-57hc-mr64-vrxx.