An authorized user may disable the MongoDB server by issuing a certain type of complex query due to boolean expression simplification

Complex queries can cause excessive memory usage in MongoDB Query Planner resulting in an Out-Of-Memory Crash...

profile command may permit unauthorized configuration

Incorrect validation of the profile command may result in the determination that a request altering the 'filter' is read-only...

MongoDB Server may crash when inserting large documents

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...

Integer Overflow in GridFS chunkSize Leading to Heap Allocation Failure

User-controlled chunkSize metadata from MongoDB lacks appropriate validation allowing malformed GridFS metadata to overflow the bounding container...

Improper Certificate Validation May Allow Successful TLS Handshaking Despite Invalid Extended Key Usage Fields in MongoDB Server

Clients may successfully perform a TLS handshake with a MongoDB server despite presenting a client certificate not aligning with the documented Extended Key Usage EKU requirements. A certificate that specifies extendedKeyUsage but is missing extendedKeyUsage = clientAuth may still be successfully...

MongoDB Windows installation MSI may leave ACLs unset on custom installation directories

The MongoDB Windows installation MSI may leave ACLs unset on custom installation directories allowing a local attacker to introduce executable code to MongoDB's process via DLL hijacking. This issue affects MongoDB Server v6.0 version prior to 6.0.25, MongoDB Server v7.0 version prior to 7.0.21 a...

MongoDB BI Connector ODBC Driver Memory-Safety Issue When Parsing Oversized LIMIT Values

An application using the MongoDB BI Connector ODBC Driver may encounter a memory-safety issue when a submitted SQL statement contains an unusually long run of digits following a LIMIT clause. The issue occurs only on connections where the driver's optional prefetch setting is enabled, and stems...

BI Connector ODBC Driver Improper Bounds Checking on Cursor Name Leading to Memory Corruption

A user able to submit SQL through an application using the MongoDB Connector for BI ODBC driver can supply a positioned-cursor statement whose cursor name exceeds the size of an internal fixed-length buffer. Because the name length is not bounded before the driver builds its diagnostic message,...

BI Connector Optional Client Certificate Verification Allows Unauthenticated Connections

When mongosqld is configured with a client certificate authority file, the listener requests a client certificate during the TLS handshake but does not require one, so a client that presents no certificate is still accepted. In deployments that rely on client certificates as the sole means of...

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 collections. This could result in a server...

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 command parameters, resulting in a fat...

Post-authentication use-after-free error in $_internalJsEmit and mapreduce commands

After invoking $internalJsEmit, which is not intended to be directly accessible, or mapreduce command’s map function in a certain way, an authenticated user can subsequently crash mongod when the server-side JavaScript engine through $where, $function, mapreduce reduce stage, etc. is used also in...

bson_validate may skip validation when processing certain inputs

The bsonvalidate function may return early on specific inputs and incorrectly report success. This behavior could result in skipping validation for BSON data, allowing malformed or invalid UTF-8 sequences to bypass validation and be processed incorrectly. The issue may affect applications that re...

Unsafe Reflection in Mongoid::Criteria.from_hash

Under specific conditions when processing a maliciously crafted value of type Hash r, Mongoid::Criteria.fromhash may allow for executing arbitrary Ruby code...

MongoDB Server may allow queries to be terminated by unauthorized users

A user with access to the cluster with a limited set of privilege actions may be able to terminate queries that are being executed by other users. This may cause a denial of service by preventing a fraction of queries from successfully completing. This issue affects MongoDB Server v7.0 versions...

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 invariant failure and server crash. Thi...

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...

Missing Authorization in MongoDB Sharded Transaction Commit/Abort Handling Leads to Cross-Shard Data Inconsistency

An issue in MongoDB Server could allow an authenticated user with direct network access to a shard to improperly commit or abort an in-progress prepared transaction, bypassing the intended transaction coordination process. This could result in cross-shard data inconsistency, cluster clock...

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 client connections routed through the...

Improper Input Validation in MongoDB Timeseries Query Processing Leads to Denial of Service

An issue in MongoDB Server's handling of certain query predicates against time-series collections with a metaField could allow an authenticated user with write access to cause the server process to terminate unexpectedly, resulting in a denial of service...

Use-After-Free in MongoDB $graphLookup Aggregation Stage Leads to Denial of Service and Potential Remote Code Execution

An issue in MongoDB Server's $graphLookup aggregation stage could allow an authenticated user able to issue aggregation and memory-management commands to cause an internal reference to be used after the underlying memory has been freed. This could result in a server crash or, potentially, executi...

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. An authenticated user could exploit...

MongoDB $linearFill Window Function Improper Input Validation Leading to Process Termination

A user with read-only privileges is able to craft an aggregation pipeline using the $linearFill window function operator with a specific sortBy expression type to cause the mongod process to terminate abnormally, resulting in denial of service. The issue stems from insufficient validation of sort...

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 containing a CodeWScope element,...

MD5 checksum creation may cause availability loss

Computing the MD5 checksum of a malformed BSON object under specific conditions may cause loss of availability in MongoDB server. This issue affects all MongoDB Server v8.2 versions, all MongoDB Server v8.1 versions, MongoDB Server v8.0 versions prior to 8.0.21, MongoDB Server v7.0 versions prior...

Invalid $geoNear index hint may cause server crash

An authorized user may trigger a server crash by running a $geoNear pipeline with certain invalid index hints...

MongoDB may be susceptible to Invariant Failure due to batched delete

MongoDB Server may experience an invariant failure during batched delete operations when handling documents. The issue arises when the server mistakenly assumes the presence of multiple documents in a batch based solely on document size exceeding BSONObjMaxSize. This issue affects MongoDB Server...

Use-after-free in the MongoDB server query planner may lead to crash or undefined behavior

An authorized user may crash the MongoDB server by causing buffer over-read. This can be done by issuing a DDL operation while queries are being issued, under some conditions. This issue affects MongoDB Server v7.0 versions prior to 7.0.25, MongoDB Server v8.0 versions prior to 8.0.15, and MongoD...

MongoSQL Transition Readiness Tool Improper Neutralization of Formula Elements in Generated Reports

The MongoSQL Transition Readiness Tool writes database and collection names into its generated CSV reports without neutralizing leading characters that spreadsheet applications treat as formulas. A user with write privileges on the cluster can choose a namespace name that is later evaluated as a...

NoSQL injection via array replacement bypassing update shape validation in driver write path

A MongoDB C driver document-replacement code path omits the element-name/shape validation that the equivalent write paths apply, so a value supplied as a replacement is forwarded to the server without neutralization of query-language special elements. An application that passes untrusted,...

MongoDB BI Connector ODBC Driver Memory-Safety Issue When Handling Stored Procedure Output Parameters

An application using the MongoDB BI Connector ODBC Driver may experience a memory-safety issue when processing output parameters from a stored procedure. Triggering this issue requires connecting to an untrusted or impersonated database server that returns crafted metadata. This may result in...

MongoDB BI Connector ODBC driver may write outside an allocated buffer when retrieving large floating point values as character data

The MongoDB BI Connector ODBC Driver converts floating point column values into text without checking that the result fits within the destination buffer. When an application reads a sufficiently large floating point value as text, the driver may write beyond the end of that buffer and corrupt...

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 to insufficient validation of certain...

Improper Input Validation in MongoDB Aggregation Command Handling Leads to Denial of Service

An issue in MongoDB Server could allow an authenticated user, including one with no assigned privileges, to cause the server process to terminate unexpectedly by submitting a specially formed aggregation command. This could result in a denial of service...

Improper Enforcement of Authentication Mechanism Restrictions in MongoDB Server Allows Use of Disabled Authentication Method

An issue in MongoDB Server could allow a party with a valid client certificate and a corresponding user account to authenticate using a certificate-based authentication method, even when an administrator has configured the server to restrict authentication to other mechanisms. This could allow...

Queryable Encryption FLE2 Find Payload Missing Input Validation Leading to Resource Exhaustion

An authenticated user can cause excessive CPU consumption or out-of-memory conditions on a MongoDB server by sending a crafted Queryable Encryption find payload containing an unvalidated field used to control an internal computation loop. The resulting resource exhaustion degrades availability fo...

Improper Validation of OCSP Response During Outbound TLS Handshake Leading to Process Termination

A MongoDB server initiating an outbound TLS connection may terminate abnormally when processing a malformed OCSP response from a remote peer during the TLS handshake. OCSP stapling validation is enabled by default for outgoing TLS connections. Affected scenarios require the remote peer to hold a...

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...

Time-series operations may cause internal BSON size limit to be exceed

Inconsistent object size validation in time series processing logic may result in later processing of oversized BSON documents leading to an assert failing and process termination. This issue impacts MongoDB Server v7.0 versions prior to 7.0.26, v8.0 versions prior to 8.0.16 and MongoDB server v8...

Malformed $group Query May Cause MongoDB Server to Crash

An authorized user can cause a crash in the MongoDB Server through a specially crafted $group query. This vulnerability is related to the incorrect handling of certain accumulator functions when additional parameters are specified within the $group operation. This vulnerability could lead to deni...

GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoDB C Driver

Improper neutralization of special elements in data query logic in the GridFS component of the MongoDB C Driver can cause a caller-supplied structured file identifier to be interpreted as a query condition rather than as a literal identifier. An authenticated user who can influence the identifier...

GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoDB Java Driver

Improper neutralization of special elements in data query logic in the GridFS component of the MongoDB Java Driver can cause a caller-supplied structured file identifier to be interpreted as a query condition rather than as a literal identifier. An authenticated user who can influence the...

Application denial of service via cancellation race in reactive client-side encryption in MongoDB Java Driver

A use-after-free in the reactive client-side encryption component of the MongoDB Java Driver can cause native resources to be freed while an affected encrypted operation is still using them when the operation is cancelled. A party able to cause such an operation to be cancelled may cause the...

GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoDB Ruby Driver

Improper neutralization of special elements in data query logic in the GridFS component of the MongoDB Ruby Driver can cause a caller-supplied structured file identifier to be interpreted as a query condition rather than as a literal identifier. An authenticated user who can influence the...

GridFS data disclosure and deletion via query-operator injection in file IDs in the MongoDB C# Driver

Improper neutralization of special elements in data query logic in the GridFS component of the MongoDB C Driver can cause a caller-supplied structured file identifier to be interpreted as a query condition rather than as a literal identifier. An authenticated user who can influence the identifier...

Heap write primitive via size round-up wrap during JSON parsing on 32-bit builds

An integer wraparound in an allocation size calculation in the BSON library's JSON parsing code can cause a buffer to be released while a following copy operation still writes through the stale pointer. On builds where sizes are 32 bits, an unauthenticated party able to supply a sufficiently larg...

Persistent client crash loop via undersized FLE2 insert-update ciphertext in decryption path

Improper handling of an unexpected value size in the decryption path of a client-side encryption library can cause a failed internal check that terminates the process using the library. A party able to place a suitably formed encrypted value where an application will decrypt it, or able to contro...

MongoDB Connector for BI Unbounded Authentication Negotiation Leading to Connection Exhaustion

A network-reachable client that has not yet authenticated can hold a MongoDB Connector for BI authentication session open indefinitely by beginning a SASL-based login exchange and then declining to complete it. Because the negotiation loop had no overall time bound and the read from the client ha...

MongoDB Connector for BI Incomplete Escaping of Stored Metadata in Generated SHOW CREATE Output

In MongoDB Connector for BI, the description text of a collection's JSON schema validator is incorporated into the comment text of the DDL returned by SHOW CREATE statements without complete escaping of backslash characters. A user with permission to modify a collection's schema validator, in...

Cross-database write redirection via unvalidated dotted database name in bulk write namespaces

The MongoDB Rust Driver does not neutralize special characters in a caller-supplied target identifier before embedding it in the request it sends to the server. An actor able to influence that identifier in an application using the driver may cause write operations to be applied to an unintended...