CVE-2026-13066

Improper handling of DBPointer objects during BSON serialization in MongoDB's server-side JavaScript engine can result in internal process memory contents being included in data returned to the client. This constitutes an unintended information disclosure affecting deployments that use server-sid...

CVE-2026-9737

During query planning when reading the sort pattern in raw BSONObj form, in some places we don’t explicitly handle the meta expression case. This may lead to incorrect transformations leading to invariant failure...

EUVD-2026-47775

During query planning when reading the sort pattern in raw BSONObj form, in some places we don’t explicitly handle the meta expression case. This may lead to incorrect transformations leading to invariant failure...

CVE-2026-13066 Server-Side JavaScript DBPointer BSON Serialization Memory Disclosure

Improper handling of DBPointer objects during BSON serialization in MongoDB's server-side JavaScript engine can result in internal process memory contents being included in data returned to the client. This constitutes an unintended information disclosure affecting deployments that use server-sid...

EUVD-2026-47795

Improper handling of DBPointer objects during BSON serialization in MongoDB's server-side JavaScript engine can result in internal process memory contents being included in data returned to the client. This constitutes an unintended information disclosure affecting deployments that use server-sid...

CVE-2026-13066

CVE-2026-13066 affects MongoDB deployments that use server-side JavaScript. The root cause is improper handling of DBPointer objects during BSON serialization in the server’s JavaScript engine, which can cause internal process memory contents to be included in data returned to the client. The ava...

CVE-2026-13077 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,...

CVE-2026-13077

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,...

PT-2026-63481

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,...

JLSEC-2026-773

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...

PYSEC-2026-1826 PyMongo Out-of-bounds Read in the bson module

Versions of the package pymongo before 4.6.3 are vulnerable to Out-of-bounds Read in the bson module. Using the crafted payload the attacker could force the parser to deserialize unmanaged memory. The parser tries to interpret bytes next to buffer and throws an exception with string. If the...

OESA-2026-2693 mongo-c-driver security update

mongo-c-driver is a project that includes two libraries: libmongoc, a client library written in C for MongoDB. libbson, a library providing useful routines related to building, parsing, and iterating BSON documents. Security Fixes: The bsonvalidate function may return early on specific inputs and...

BIT-MONGODB-2026-11933 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 $function can cause the server to access...

BIT-MONGODB-2026-9740 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 recursion between validation functions,...

MongoDB 4.4.x < 4.4.31 / 5.0.x < 5.0.34 / 6.0.x < 6.0.29 / 7.0.x < 7.0.37 / 8.0.x < 8.0.26 / 8.2.x < 8.2.11 / 8.3.x < 8.3.4 Use-After-Free (CVE-2026-11933)

The version of MongoDB installed on the remote host is 4.4.x prior to 4.4.31, 5.0.x prior to 5.0.34, 6.0.x prior to 6.0.29, 7.0.x prior to 7.0.37, 8.0.x prior to 8.0.26, 8.2.x prior to 8.2.11, or 8.3.x prior to 8.3.4. It is, therefore, affected by a use-after-free vulnerability: - A use-after-fre...

CVE-2026-11933

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...

UBUNTU-CVE-2026-11933

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...

CVE-2026-11933 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 $function can cause the server to access...

CVE-2026-11933 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 $function can cause the server to access...

EUVD-2026-36373

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...