Data deletion and attribute disclosure via field-name method injection in in-memory queries

Document deletion and process crash via unvalidated method-name dispatch in atomic pop operation

Server-side JavaScript injection via string query criteria bypassing the strict operator allowlist

NoSQL injection of JavaScript-executing query operators via unsafe-by-default operator guard

Cross-principal document update, theft, and deletion via unvalidated id in nested attributes

Denial of service via unbounded regex matching in Mongoid's in-memory query matcher

Silent plaintext persistence via unresolved callable database name in encryption schema map

Plaintext storage of encrypted fields via skipped embedded models in encryption schema generation