Comparison

Couchbase vs MongoDB

Couchbase and MongoDB both land on Depends.

Couchbase

Depends

Confidence: Medium

Buy it if you run a distributed, high-throughput app needing NoSQL scale and have ops staff for clusters.

Depends

Confidence: Medium

Buy MongoDB if you have developers and document-shaped, fast-changing, high-write data.

Couchbase versus MongoDB
Compare	Couchbase	MongoDB
Verdict	Depends	Depends
Best for	High-throughput distributed NoSQL at scale	Document-heavy, fast-changing schemas
Who it's not for	Small apps and prototypes . Postgres or SQLite is plenty	Relational, join-heavy data . reviewers say Postgres wins
Privacy	Multiple public CVEs affect Couchbase Server; the Capella cloud holds ISO 27001 certification.^⁹	Active threat surface: critical 2025 memory-disclosure CVE reportedly exploited in the wild, plus a 2023 customer-data incident; patches released.
Support quality	No direct support evidence in sources	Trustpilot cites 'big company with 0 support'
Public sentiment	Users praise ease of use and built-in features but flag licensing costs, a smaller community than MongoDB, and painful recovery moments.^¹	Users love the flexibility and quick start for document data, but commonly gripe about support, scaling costs, and default to Postgres for relational work.
Biggest gotcha	Public reports of restore tools failing mid-recovery . test your backups before trusting them	MongoBleed (CVE-2025-14847): exposed or misconfigured instances were targeted; patch fast and audit exposure.