In version from 3.5.Beta1 to 3.5.3 of Eclipse Vert.x, the OpenAPI XML type validator creates XML parsers without taking appropriate defense against XML attacks. This mechanism is exclusively when the developer uses the Eclipse Vert.x OpenAPI XML type validator to validate a provided schema.
access.redhat.com/errata/RHSA-2018:2946
bugs.eclipse.org/bugs/show_bug.cgi?id=539568
github.com/advisories/GHSA-qh3m-qw6v-qvhg
github.com/vert-x3/vertx-web/commit/ac8692c618d6180a9bc012a2ac8dbec821b1a97
github.com/vert-x3/vertx-web/issues/1021
lists.apache.org/thread.html/rd0e44e8ef71eeaaa3cf3d1b8b41eb25894372e2995ec908ce7624d26@%3Ccommits.pulsar.apache.org%3E
nvd.nist.gov/vuln/detail/CVE-2018-12544