MongoDB vulnerabilities

CVE-2026-5170 [MEDIUM] CWE-617 CVE-2026-5170: A user with access to the cluster with a limited set of privilege actions can trigger a crash of a m 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

CVE-2026-4147 [HIGH] CWE-457 CVE-2026-4147: An authenticated user with the read role may read limited amounts of uninitialized stack memory via An authenticated user with the read role may read limited amounts of uninitialized stack memory via specially-crafted issuances of the filemd5 command.

CVE-2026-4148 [HIGH] CWE-416 CVE-2026-4148: A use-after-free vulnerability can be triggered in sharded clusters by an authenticated user with th 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.

CVE-2026-4358 [MEDIUM] CWE-415 CVE-2026-4358: A specially crafted aggregation query with $lookup by an authenticated user with write privileges ca 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.

CVE-2026-25613 [HIGH] CWE-704 CVE-2026-25613: An authorized user may disable the MongoDB server by issuing a query against a collection that conta An authorized user may disable the MongoDB server by issuing a query against a collection that contains an invalid compound wildcard index.

CVE-2026-1848 [HIGH] CWE-770 CVE-2026-1848: Connections received from the proxy port may not count towards total accepted connections, resulting 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.

CVE-2026-1849 [HIGH] CWE-674 CVE-2026-1849: MongoDB Server may experience an out-of-memory failure while evaluating expressions that produce dee 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.

CVE-2026-1850 [HIGH] CWE-770 CVE-2026-1850: Complex queries can cause excessive memory usage in MongoDB Query Planner resulting in an Out-Of-Mem Complex queries can cause excessive memory usage in MongoDB Query Planner resulting in an Out-Of-Memory Crash.

CVE-2026-25610 [HIGH] CWE-617 CVE-2026-25610: An authorized user may trigger a server crash by running a $geoNear pipeline with certain invalid in An authorized user may trigger a server crash by running a $geoNear pipeline with certain invalid index hints.

CVE-2026-1847 [HIGH] CWE-770 CVE-2026-1847: Inserting certain large documents into a replica set could lead to replica set secondaries not being 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.

CVE-2026-25609 [MEDIUM] CWE-862 CVE-2026-25609: Incorrect validation of the profile command may result in the determination that a request altering Incorrect validation of the profile command may result in the determination that a request altering the 'filter' is read-only.

CVE-2025-14847 [HIGH] CWE-130 CVE-2025-14847: Mismatched length fields in Zlib compressed protocol headers may allow a read of uninitialized heap 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 Server v8.2 versions prior to 8.2.3, MongoDB Server v6.0 versions prior to 6.0.27, MongoDB Ser

CVE-2025-14345 [LOW] CWE-667 CVE-2025-14345: A post-authentication flaw in the network two-phase commit protocol used for cross-shard transaction A post-authentication flaw in the network two-phase commit protocol used for cross-shard transactions in MongoDB Server may lead to logical data inconsistencies under specific conditions which are not predictable and exist for a very short period of time. This error can cause the transaction coordination logic to misinterpret the transaction as committ

CVE-2025-13644 [HIGH] CWE-617 CVE-2025-13644: MongoDB Server may experience an invariant failure during batched delete operations when handling do 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 v7.0 versions prior to 7.0.26, MongoDB Server v8.0 versi

CVE-2025-13507 [HIGH] CWE-1284 CVE-2025-13507: Inconsistent object size validation in time series processing logic may result in later processing o 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 v8.2 versions prior to 8.2.1.

CVE-2025-12893 [LOW] CWE-295 CVE-2025-12893: Clients may successfully perform a TLS handshake with a MongoDB server despite presenting a client c 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 authenticated via the TLS handshake as a client. This

CVE-2025-13643 [LOW] CWE-862 CVE-2025-13643: A user with access to the cluster with a limited set of privilege actions may be able to terminate q 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 prior to 7.0.26 and MongoDB Server v8.0 versions prior to

CVE-2025-12657 [MEDIUM] CWE-754 CVE-2025-12657: The KMIP response parser built into mongo binaries is overly tolerant of certain malformed packets, The KMIP response parser built into mongo binaries is overly tolerant of certain malformed packets, and may parse them into invalid objects. Later reads of this object can result in read access violations.

CVE-2025-11979 [MEDIUM] CWE-416 CVE-2025-11979: An authorized user may crash the MongoDB server by causing buffer over-read. This can be done by iss 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 MongoDB Server version 8.2.0.

CVE-2025-11695 [HIGH] CWE-295 MongoDB Rust Driver has certificate validation disabled when `tlsInsecure=False` appears in connection string MongoDB Rust Driver has certificate validation disabled when `tlsInsecure=False` appears in connection string When tlsInsecure=False appears in a connection string, certificate validation is disabled. This vulnerability affects MongoDB Rust Driver versions prior to v3.2.5.