XXE Injection Vulnerability in XML Batch Processing of ICS Products by a Major Vendor
CVE-2026-82578

8.7HIGH

Key Information:

Vendor

Nextgen Healthcare

Status
Mirth Connect
Vendor
CVE Published:
11 September 2026

What is CVE-2026-82578?

This vulnerability originates when XML batch processing is enabled with the XPath option selected. The absence of entity restrictions in the configuration allows attackers to exploit the system through XXE injection. By crafting malicious XML input, they can potentially exfiltrate sensitive data or disrupt service availability, leading to data leakage and denial-of-service conditions.

Affected Version(s)

Mirth Connect 0 <= 4.7.1

Mirth Connect 4.7.2

References

https://www.cisa.gov/news-events/ics-medical-advisories/i...
https://github.com/cisagov/CSAF/blob/develop/csaf_files/O...

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Abhinav Agarwal reported this vulnerability to CISA.
.