title: Red Hat Bug Fix Advisory: Red Hat Developer Hub 1.4.0 release.
description: http-proxy-middleware: Denial of Service cross-spawn: regular expression denial of service path-to-regexp: Backtracking regular expressions cause ReDoS body-parser: Denial of Service Vulnerability in body-parser plugin-catalog-backend: prototype pollution vulnerability plugin-techdocs-backend: storage bucket directory traversal in TechDocs plugin-techdocs-backend: circumvention of XSS protection in TechDocs backstage/plugin-app-backend: Unexpected visibility of environment variable configurations in @backstage/plugin-app-backend
cpes: cpe:/a:redhat:rhdh:1.4::el9