XML External Entity Reference in drools
Date: 2022-06
Affected: maven/org.drools:drools-core
Attack vector: other
Category: vulnerability-disclosure
Severity: Critical
CVE: CVE-2021-41411
CWE: CWE-611
CVSS: 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

drools <=7.59.x is affected by an XML External Entity (XXE) vulnerability in KieModuleMarshaller.java. The Validator class is not used correctly, resulting in the XXE injection vulnerability.


Mitigations:

Architectural layers (MAESTRO):