MongoDb Use After Free Vulnerability - CVE-2026-11933
A use-after-free vulnerability exists in MongoDB Server39s server-side JavaScript engine when converting BSON documents to JavaScript arrays. An authenticated user with read privileges who is able to run server-side JavaScript (for example via where or function) can cause the server to access memory that has already been freed. This may result in disclosure of information from the mongod process memory or a denial of service through a server crash.