Race Condition in MongoDB Server Document Value Layer Enables Memory Corruption
CVE-2026-89099 Published on September 11, 2026
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.
Vulnerability Analysis
CVE-2026-89099 can be exploited with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
What is a Race Condition Vulnerability?
The program contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently.
CVE-2026-89099 has been classified to as a Race Condition vulnerability or weakness.
Products Associated with CVE-2026-89099
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Affected Versions
MongoDB Server:- Version 8.3.0 and below 8.3.11 is affected.
- Version 8.0 and below 8.0.32 is affected.
- Version 7.0 and below 7.0.43 is affected.