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High 7.5
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 …
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High 7.5
Uncontrolled Resource Consumption in MongoDB Sharded Cluster Router Allows Unauthenticated Denial of Service
An uncontrolled resource consumption weakness exists in the request-handling path of the MongoDB sharded-cluster router process. A client that has network access to a router port and has not authenticated can supply connection-monitoring parameters that cause…
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High 8.1
Insufficient Validation of Storage Engine Configuration Options in MongoDB Server Leads to Out-of-Bounds Write
Insufficient validation of storage engine configuration options in MongoDB Server allows an authenticated user with write privileges to supply crafted parameters during collection creation that override internal storage metadata. This results in an out-of-bou…
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High 8.1
Improper Case Sensitivity Handling in MongoDB Server Configuration Validation May Cause Authorization to Remain Disabled at Startup
Improper handling of case sensitivity in the configuration validation component of MongoDB Server may cause the authorization subsystem to remain in a default disabled state during server startup. An unauthenticated user with network access to a deployment wh…
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High 7.5
Unauthenticated Denial of Service in MongoDB Server via Assertion Failure in Read Concern Processing on Replica Set Members
A security issue in MongoDB Server allows an unauthenticated network user to cause a denial of service on a specific type of replica set member. The server contains an assertion in its read concern processing logic that can be reached without authentication, …
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High 8.1
Use-After-Free in MongoDB Server Query Execution Memory Tracking Subsystem Leads to Denial of Service
A use-after-free security issue exists in the server's query execution memory tracking subsystem. An authenticated user with read privileges can trigger a write to freed heap memory through a sequence of standard database commands, leading to server process c…
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High 8.1
Improper Session Handling in MongoDB Server LDAP Authorization Integration Leads to Incorrect Role Assignment
A security issue exists in MongoDB's LDAP authorization integration where pooled LDAP connections can retain stale authentication identities after user authentication under certain configurations. Subsequent authorization queries may execute under an unintend…
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High 8.1
Improper Authorization in MongoDB Queryable Encryption Maintenance Operations Allows Unauthorized Modification of Other Collections
An issue in MongoDB Server's Queryable Encryption maintenance operations could allow an authenticated user with privileges on one encrypted collection to cause unauthorized modification or destruction of data belonging to a different collection. This is due t…
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High 7.1
Use-After-Free in MongoDB Query Execution Engine Leads to Denial of Service and Potential Memory Disclosure
An issue in MongoDB Server's query execution engine could allow an authenticated user with read and write privileges to cause an internal reference to be used after the underlying memory has been freed, when running certain queries against time-series collect…
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High 8.1
Improper Authorization in MongoDB Server Allows Unauthorized Actions on System Collections
An issue in MongoDB Server could allow an authenticated user with a limited database-scoped role to perform an action against protected system collections that their assigned privileges should not permit. This could result in critical system collections being…
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High 8.8
Improper Authentication in MongoDB Intra-Cluster Connections Allows Credential Exposure
An issue in MongoDB Server's intra-cluster connection setup could allow a party with suitable network access to influence which authentication mechanism is used when one replica set member connects to another. Under certain conditions, this could cause the cl…
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High 7.1
Out-of-Bounds Read in MongoDB Geospatial Query Processing Leads to Denial of Service and Potential Memory Disclosure
An issue in MongoDB Server's geospatial query processing could allow an authenticated user with write privileges to cause certain malformed geometry data to be stored and later processed without proper validation. Subsequent queries against this data could th…
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High 7.5
Improper Input Validation in MongoDB Aggregation Framework Allows Unauthenticated Denial of Service on mongos
An issue in MongoDB Server's aggregation framework could allow an unauthenticated party to cause a mongos (router) process to terminate unexpectedly by submitting a specially formed aggregation command. This could result in a denial of service, disrupting cli…
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High 7.6
Out-of-Bounds Read/Write in MongoDB Timeseries Bucket Handling Leads to Denial of Service and Potential Memory Disclosure
An issue in MongoDB Server's handling of timeseries collections could allow an authenticated user with write privileges to cause an internal data structure to become inconsistent through certain document insertions. A subsequent insert into the affected bucke…
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High 8.8
Use-After-Free in MongoDB Timeseries Bucket Handling Leads to Denial of Service and Potential Remote Code Execution
An issue in MongoDB Server's handling of timeseries bucket lifecycle could allow an authenticated user with write privileges to cause an internal reference to be used after the underlying memory has been freed. Subsequent operations could then result in a ser…
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High 7.1
Out-of-Bounds Read in MongoDB Aggregation Framework Leads to Denial of Service and Potential Memory Disclosure
An issue in MongoDB Server's aggregation framework could allow an authenticated user to trigger an out-of-bounds memory read by providing a specially formed numeric parameter in a certain aggregation pipeline stage. This could result in a server crash (denial…
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High 7.1
Improper Validation in MongoDB Queryable Encryption Maintenance Operation Leads to Denial of Service and Index Corruption
MongoDB Server's handling of a Queryable Encryption maintenance operation did not properly validate certain request parameters against the collection's encrypted field configuration before use. An authenticated user with readWrite privileges could submit a sp…
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High 7.1
Transaction Command Insufficient Input Validation Leading to Process Termination
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 …
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High 8.1
Improper Validation of Client-Supplied Command Parameters Allowing Role-Based Access Control Bypass
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, u…
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High 8.1
MongoDB Improper Input Validation in Compute Mode External Data Processing Leading to Memory Corruption
When compute mode is enabled on a standalone mongod instance, insufficient validation of externally sourced BSON data during aggregation pipeline processing can result in memory corruption, potentially leading to process termination or other unintended behavi…
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High 7.1
Out-of-Bounds Heap Read in BSON CodeWScope Element Parsing via Malformed BSONColumn Data
A missing bounds check in the BSON CodeWScope element accessors allows an attacker to trigger an out-of-bounds heap read via a crafted aggregation pipeline. The vulnerability can be exploited by an authenticated user by generating a malformed BSONColumn data …
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High 7.7CVE-2026-13078 Public exploit
Local File Disclosure in MongoDB Server via MozJS Scripting Engine Module Loader
A vulnerability was discovered in MongoDB Server where the server-side MozJS scripting engine unconditionally registered a module loading hook that enables JavaScript calls to read arbitrary files from the host filesystem using the mongod process's privileges…
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High 8.8
Post-authentication use-after-free in server-side JavaScript BSON-to-array conversion
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 $func…
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High 7.5
Unbounded recursion in BSONColumn interleaved-reference causes pre-auth stack overflow
A vulnerability in MongoDB Server's BSON validation logic allows an unauthenticated user to crash the mongod process by sending a specially crafted message. The BSON validator's handling of certain nested binary data structures permits uncontrolled mutual rec…
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High 8.1
Server crash via malformed binary diff passed to $_internalApplyOplogUpdate.
The $_internalApplyOplogUpdate aggregation pipeline stage can be used to execute a document diff containing a malformed binary diff to return memory out-of-bounds or crash the server. $_internalApplyOplogUpdate can be executed by any authenticated user with a…
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High 7.5
Authenticate command with specific mechanism parameter can trigger server crash
When OIDC authentication is enabled in configuration, clients may set specific values in the "mechanism" parameter of the "authenticate" command that lead to server crash. The authenticate command is accessible to unauthenticated clients, leading to pre-auth …
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High 8.8
FlatBSON Duplicate Field Index Drift
An issue in MongoDB Server's time-series collection implementation allows an authenticated user with database write privileges to trigger an out-of-bounds memory write in the mongod process. The issue results from an inconsistency in the internal field-name-t…
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High 8.8
ExpressionContext use-after-free in classic engine $lookup and $graphLookup aggregation operators
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.
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High 7.5
Pre-Authentication Memory Exhaustion Denial of Service in MongoDB Server
A series of specifically crafted, unauthenticated messages can exhaust available memory and crash a MongoDB server.
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High 7.5
Zlib compressed protocol header length confusion may allow memory read
Mismatched length fields in Zlib compressed protocol headers may allow a read of uninitialized heap memory by an unauthenticated client. This issue affects all MongoDB Server v7.0 prior to 7.0.28 versions, MongoDB Server v8.0 versions prior to 8.0.17, MongoDB…
KEV Dec 29, 2025 -
High 7.5
Incorrect Handling of incomplete data may prevent mongoS from Accepting New Connections
MongoDB Server's mongos component can become unresponsive to new connections due to incorrect handling of incomplete data. This affects MongoDB when configured with load balancer support. This issue affects MongoDB Server v6.0 prior to 6.0.23, MongoDB Server …
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High 7.7CVE-2025-6713 Public exploit
MongoDB Server may be susceptible to privilege escalation due to $mergeCursors stage
An unauthorized user may leverage a specially crafted aggregation pipeline to access data without proper authorization due to improper handling of the $mergeCursors stage in MongoDB Server. This may lead to access to data without further authorisation. This i…
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High 7.5
Pre-authentication Denial of Service Stack Overflow Vulnerability in JSON Parsing via Excessive Recursion in MongoDB
MongoDB Server may be susceptible to stack overflow due to JSON parsing mechanism, where specifically crafted JSON inputs may induce unwarranted levels of recursion, resulting in excessive stack space consumption. Such inputs can lead to a stack overflow that…
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High 7.5
Pre-Authentication Denial of Service Vulnerability in MongoDB Server's OIDC Authentication
The MongoDB Server is susceptible to a denial of service vulnerability due to improper handling of specific date values in JSON input when using OIDC authentication. This can be reproduced using the mongo shell to send a malicious JSON payload leading to an i…
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High 8.1
MongoDB Server running on Linux may allow unexpected connections where intermediate certificates are revoked
A MongoDB server under specific conditions running on Linux with TLS and CRL revocation status checking enabled, fails to check the revocation status of the intermediate certificates in the peer's certificate chain. In cases of MONGODB-X509, which is not enab…
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High 7.5
Malformed MongoDB wire protocol messages may cause mongos to crash
Specifically crafted MongoDB wire protocol messages can cause mongos to crash during command validation. This can occur without using an authenticated connection. This issue affects MongoDB v5.0 versions prior to 5.0.31, MongoDB v6.0 versions prior to 6.0.20…
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High 7.3
Accessing Untrusted Directory May Allow Local Privilege Escalation
Incorrect validation of files loaded from a local untrusted directory may allow local privilege escalation if the underlying operating systems is Windows. This may result in the application executing arbitrary behaviour determined by the contents of untrusted…
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High 8.8
MongoDB Server may allow successful untrusted connection
Under certain configurations of --tlsCAFile and tls.CAFile, MongoDB Server may skip peer certificate validation which may result in untrusted connections to succeed. This may effectively reduce the security guarantees provided by TLS and open connections that…
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High 7.5
Denial of service via malformed network packet
An unauthenticated client can trigger denial of service by issuing specially crafted wire protocol messages, which cause the message decompressor to incorrectly allocate memory. This issue affects MongoDB Server v4.2 versions prior to 4.2.1; MongoDB Server v4…
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High 7.1
Authorization session conflation
After user deletion in MongoDB Server the improper invalidation of authorization sessions allows an authenticated user's session to persist and become conflated with new accounts, if those accounts reuse the names of deleted ones. This issue affects MongoDB S…