Mongodb: >> Mongodb >> 8.2.4 Security Vulnerabilities
An authenticated user with basic write privileges can cause the mongod process to terminate abnormally by sending a crafted transaction command with an incomplete set of required fields. The issue stems from inconsistent validation across related transaction command parameters, resulting in a fatal internal invariant failure and denial of service.
CVSS Score
7.1
EPSS Score
0.002
Published
2026-07-22
An authenticated user with low privileges may be able to perform unauthorized reads and writes on data protected by role-based query-level access controls, due to insufficient validation of certain client-supplied command parameters. The issue affects find, update, delete, and aggregate commands in non-apiStrict configurations.
CVSS Score
8.6
EPSS Score
0.004
Published
2026-07-22
An authenticated user with limited read privileges may be able to access documents from collections they are not authorized to read, due to an inconsistency in how the $graphLookup aggregation stage is evaluated during authorization and during execution. Affected scenarios involve collections referenced within existing view pipeline definitions.
CVSS Score
7.1
EPSS Score
0.004
Published
2026-07-22
A use-after-free vulnerability exists in MongoDB Server's 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.
CVSS Score
8.7
EPSS Score
0.004
Published
2026-06-12
An authenticated user with the read role may read limited amounts of uninitialized stack memory via specially-crafted issuances of the filemd5 command
CVSS Score
7.1
EPSS Score
0.002
Published
2026-06-09
Adding fromRouter:true and runtimeConstants.userRoles could cause aggregations to crash mongodb server.
CVSS Score
7.1
EPSS Score
0.003
Published
2026-06-09
The $_internalConvertBucketIndexStats stage used PauseExecution as a way to signal "skip this document" when an index stats conversion failed. But PauseExecution is not a general purpose skip mechanism, but rather a TeeBuffer-internal signal used solely by $facet to coordinate its sub-pipelines. When this stage is placed before $facet in a pipeline, TeeBuffer receives the unexpected PauseExecution from upstream and hits a hard invariant assertion, crashing mongod.
CVSS Score
7.1
EPSS Score
0.003
Published
2026-06-09
This issue can occur when running an aggregation pipeline that uses the internal $exchange stage configured with key-range partitioning and order-preserving delivery. If a single key range produces enough documents to fill its exchange buffer (that is, many results are routed to the same consumer), the server reaches the code path where a full per-consumer buffer is detected but the internal "high watermark" for that key range is not updated as intended.
CVSS Score
7.1
EPSS Score
0.003
Published
2026-06-09
An authenticated user can cause a MongoDB server to crash or return incorrect results by creating documents that interfere with internal metadata processing during query execution. This stems from insufficient separation between user-controlled document fields and internal metadata in certain execution paths.
CVSS Score
7.1
EPSS Score
0.004
Published
2026-06-09
The ldapQueryPassword parameter, when set through the runtime setParameter command, will log the new password to the mongod.log file in plain text.
CVSS Score
6.8
EPSS Score
0.001
Published
2026-06-09