Mongodb: >> Mongodb >> 7.0.20 Security Vulnerabilities
A user with access to the cluster with a limited set of privilege actions can trigger a crash of a mongod process during the limited and unpredictable window when the cluster is being promoted from a replica set to a sharded cluster. This may cause a denial of service by taking down the primary of the replica set.
This issue affects MongoDB Server v8.2 versions prior to 8.2.2, MongoDB Server v8.0 versions between 8.0.18, MongoDB Server v7.0 versions between 7.0.31.
CVSS Score
6.0
EPSS Score
0.0
Published
2026-03-30
A specially crafted aggregation query with $lookup by an authenticated user with write privileges can cause a double-free or use-after-free memory issue in the slot-based execution (SBE) engine when an in-memory hash table is spilled to disk.
CVSS Score
6.1
EPSS Score
0.0
Published
2026-03-17
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
0.0
Published
2026-03-17
A use-after-free vulnerability can be triggered in sharded clusters by an authenticated user with the read role who issues a specially crafted $lookup or $graphLookup aggregation pipeline.
CVSS Score
8.7
EPSS Score
0.001
Published
2026-03-17
An authorized user may trigger a server crash by running a $geoNear pipeline with certain invalid index hints.
CVSS Score
7.1
EPSS Score
0.001
Published
2026-02-10
An authorized user may disable the MongoDB server by issuing a query against a collection that contains an invalid compound wildcard index.
CVSS Score
7.1
EPSS Score
0.001
Published
2026-02-10
Incorrect validation of the profile command may result in the determination that a request altering the 'filter' is read-only.
CVSS Score
5.3
EPSS Score
0.0
Published
2026-02-10
Inserting certain large documents into a replica set could lead to replica set secondaries not being able to fetch the oplog from the primary. This could stall replication inside the replica set leading to server crash.
CVSS Score
7.1
EPSS Score
0.001
Published
2026-02-10
Connections received from the proxy port may not count towards total accepted connections, resulting in server crashes if the total number of connections exceeds available resources. This only applies to connections accepted from the proxy port, pending the proxy protocol header.
CVSS Score
8.2
EPSS Score
0.001
Published
2026-02-10
MongoDB Server may experience an out-of-memory failure while evaluating expressions that produce deeply nested documents. The issue arises in recursive functions because the server does not periodically check the depth of the expression.
CVSS Score
7.1
EPSS Score
0.001
Published
2026-02-10
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