I was getting a Sigma Detection Error when trying to import a rule from Sigma repository to opensearch. Upon further inspection in the source code, i found out that only IPv4 addresses are validated. IPv6 addresses fail the validation and hence I’m not able to create the rule. Would be great if opensearch adds support for IPv6
For reference, this was the file I checked: src/main/java/org/opensearch/securityanalytics/rules/types/SigmaCIDRExpression.java.