parse-server-push-adapter is the official Push Notification adapter for Parse Server. The Parse Server Push Adapter can crash Parse Server due to an invalid push notification payload. This issue has been patched in version 4.1.3.
https://github.com/parse-community/parse-server-push-adapter/security/advisories/GHSA-mxhg-rvwx-x993
https://github.com/parse-community/parse-server-push-adapter/releases/tag/4.1.3
https://github.com/parse-community/parse-server-push-adapter/pull/217