CVE-2026-89099: Race Condition in MongoDB Server Document Value Layer Leads to Memory Corruption
A race condition in the document value layer of MongoDB Server can allow concurrent server threads to operate on the same internal memory without synchronization, leading to memory corruption. An authenticated user holding ordinary read-write privileges on a database may be able to trigger this condition over the normal client protocol, resulting in server termination and potential corruption of process memory with user-influenced content. Successful use of this issue may impact the confidentiality, integrity, and availability of the affected server process.
Affected Software
Event History
Frequently Asked Questions
Who can realistically exploit this issue?
An authenticated MongoDB user with ordinary read-write privileges on a database may be able to trigger it. Exploitation is performed over the normal client protocol, so network access to the server is also required.
Does exploitation require elevated database privileges or user interaction?
The described attacker only needs ordinary read-write database privileges; administrative privileges are not stated as necessary. No user interaction is required.
What is the likely operational impact if the issue is triggered?
The server may terminate, and process memory may be corrupted with user-influenced content. The reported potential impact includes confidentiality, integrity, and availability of the affected server process.