CVE-2026-106433 Heap corruption via duplicate masterKey fields in MongoDB libmongocrypt

Improper state management in MongoDB libmongocrypt can cause provider-specific data to be treated as an incompatible type when cleaning up a key document containing duplicate masterKey fields. An authenticated actor who can modify key vault documents, or a server that returns such a key document,...

EUVD-2026-95162

Improper state management in MongoDB libmongocrypt can cause provider-specific data to be treated as an incompatible type when cleaning up a key document containing duplicate masterKey fields. An authenticated actor who can modify key vault documents, or a server that returns such a key document,...

CVE-2026-106433

Improper state management in MongoDB libmongocrypt allows for heap corruption when cleaning up a key document that contains duplicate masterKey fields. This flaw causes provider-specific data to be treated as an incompatible type, leading to invalid memory access and invalid frees in the client p...

CVE-2026-106433 Heap corruption via duplicate masterKey fields in MongoDB libmongocrypt

Improper state management in MongoDB libmongocrypt can cause provider-specific data to be treated as an incompatible type when cleaning up a key document containing duplicate masterKey fields. An authenticated actor who can modify key vault documents, or a server that returns such a key document,...

Heap corruption via duplicate masterKey fields in MongoDB libmongocrypt

Improper state management in MongoDB libmongocrypt can cause provider-specific data to be treated as an incompatible type when cleaning up a key document containing duplicate masterKey fields. An authenticated actor who can modify key vault documents, or a server that returns such a key document,...

CVE-2026-106433

Improper state management in MongoDB libmongocrypt can cause provider-specific data to be treated as an incompatible type when cleaning up a key document containing duplicate masterKey fields. An authenticated actor who can modify key vault documents, or a server that returns such a key document,...

CVE-2026-106429 Application denial of service via malformed KMS endpoint in MongoDB libmongocrypt

An integer underflow in the KMS endpoint-parsing logic of MongoDB libmongocrypt can cause an allocation failure that terminates the application process. This can occur when an authenticated user modifies a key document in the key vault collection, or when an application accepts a KMS endpoint...

CVE-2026-106429

A vulnerability exists in the MongoDB libmongocrypt KMS endpoint-parsing logic due to an integer underflow . This flaw can lead to an allocation failure that terminates the application process, resulting in a denial of service . The issue is triggered when an authenticated user modifies a key doc...

EUVD-2026-95160

An integer underflow in the KMS endpoint-parsing logic of MongoDB libmongocrypt can cause an allocation failure that terminates the application process. This can occur when an authenticated user modifies a key document in the key vault collection, or when an application accepts a KMS endpoint...

CVE-2026-106429 Application denial of service via malformed KMS endpoint in MongoDB libmongocrypt

An integer underflow in the KMS endpoint-parsing logic of MongoDB libmongocrypt can cause an allocation failure that terminates the application process. This can occur when an authenticated user modifies a key document in the key vault collection, or when an application accepts a KMS endpoint...

CVE-2026-106429

An integer underflow in the KMS endpoint-parsing logic of MongoDB libmongocrypt can cause an allocation failure that terminates the application process. This can occur when an authenticated user modifies a key document in the key vault collection, or when an application accepts a KMS endpoint...

Application denial of service via malformed KMS endpoint in MongoDB libmongocrypt

An integer underflow in the KMS endpoint-parsing logic of MongoDB libmongocrypt can cause an allocation failure that terminates the application process. This can occur when an authenticated user modifies a key document in the key vault collection, or when an application accepts a KMS endpoint...

CVE-2026-106429

An integer underflow in the KMS endpoint-parsing logic of MongoDB libmongocrypt can cause an allocation failure that terminates the application process. This can occur when an authenticated user modifies a key document in the key vault collection, or when an application accepts a KMS endpoint...

PT-2026-108139

Name of the Vulnerable Software and Affected Versions libmongocrypt affected versions not specified Description The explicit decryption component of MongoDB libmongocrypt may return an unrecognized encrypted payload without modification instead of triggering a decryption error. This allows an act...

PT-2026-108138

Name of the Vulnerable Software and Affected Versions libmongocrypt affected versions not specified Description Improper state management occurs when cleaning up a key document that contains duplicate masterKey fields, causing provider-specific data to be treated as an incompatible type. An...

CVE-2026-106429: Integer Underflow (Wrap or Wraparound)

An integer underflow in the KMS endpoint-parsing logic of MongoDB libmongocrypt can cause an allocation failure that terminates the application process. This can occur when an authenticated user modifies a key document in the key vault collection, or when an application accepts a KMS endpoint...

CVE-2026-106434: Improper Validation of Integrity Check Value

The explicit decryption component of MongoDB libmongocrypt can return an unrecognized encrypted payload unchanged instead of returning a decryption error. An actor who can modify stored encrypted fields, such as a database writer, server, or network intermediary, can cause an affected application...

PT-2026-108135

Name of the Vulnerable Software and Affected Versions MongoDB libmongocrypt affected versions not specified Description An integer underflow exists in the KMS endpoint-parsing logic. This occurs when an authenticated user modifies a key document in the key vault collection, or when an application...

CVE-2026-106433: Access of Resource Using Incompatible Type

Improper state management in MongoDB libmongocrypt can cause provider-specific data to be treated as an incompatible type when cleaning up a key document containing duplicate masterKey fields. An authenticated actor who can modify key vault documents, or a server that returns such a key document,...

CVE-2026-84971

A flaw was found in MONGOCRYPT. Improper handling of an unexpected value size in the decryption path of the client-side encryption library can lead to a failed internal check. A remote attacker, by placing a specially crafted encrypted value or controlling application responses, could exploit thi...