The MongoDB C Driver does not validate the type or format of a namespace field returned by the server in a query response. A MongoDB endpoint that a client application connects to, without needing any credentials, can return a malformed value in that field. This causes the client application process to terminate, and can also cause the driver to read memory outside an allocated buffer and to send a small amount of the application's own uninitialized heap memory back to the endpoint in a follow-up command. The impact is limited to the process that embeds the driver.

bson-devel-2.5.8-1.1 on GA media

Affected: Ubuntu:Pro:20.04:LTS: mongo-c-driver, Ubuntu:Pro:22.04:LTS: mongo-c-driver, Ubuntu:Pro:24.04:LTS: mongo-c-driver, Ubuntu:26.10: mongo-c-driver, Ubuntu:26.04:LTS: mongo-c-driver

The MongoDB C Driver does not validate the type or format of a namespace field returned by the server in a query response. A MongoDB endpoint that a client application connects to, without needing any credentials, can return a malformed value in that field. This causes the client application process to terminate, and can also cause the driver to read memory outside an allocated buffer and to send a small amount of the application's own uninitialized heap memory back to the endpoint in a follow-up command. The impact is limited to the process that embeds the driver.

Ein Angreifer kann mehrere Schwachstellen in MongoDB (EF Core Provider, Atlas SQL, C Treiber, Rust Treiber, Database Tools und Node.js Treiber) ausnutzen, um einen Denial of Service Angriff durchzuführen, um Informationen offenzulegen, um Dateien zu manipulieren und um Sicherheitsvorkehrungen zu umgehen.