CVE-2026-81529

This HIGH severity (CVSS 3.1: 7.1) vulnerability affects the MongoDB C# Driver (NuGet: MongoDB.Driver). The root cause is improper neutralization of delimiters in the connection-URL builder: when untrusted text is passed into the builder and the result is round-tripped back into a client configur...

Connection-option injection via unescaped settings in the canonical MongoDB URL builder

Improper neutralization of delimiters in connection-URL construction allows connection-option injection in the MongoDB C Driver. When an application passes untrusted text into the driver's connection-URL builder and round-trips the builder back into a client configuration, the untrusted text is...

CVE-2026-81529 Connection-option injection via unescaped settings in the canonical MongoDB URL builder

Improper neutralization of delimiters in connection-URL construction allows connection-option injection in the MongoDB C Driver. When an application passes untrusted text into the driver's connection-URL builder and round-trips the builder back into a client configuration, the untrusted text is...

EUVD-2026-67213

Improper neutralization of delimiters in connection-URL construction allows connection-option injection in the MongoDB C Driver. When an application passes untrusted text into the driver's connection-URL builder and round-trips the builder back into a client configuration, the untrusted text is...

CVE-2026-81529 Connection-option injection via unescaped settings in the canonical MongoDB URL builder

Improper neutralization of delimiters in connection-URL construction allows connection-option injection in the MongoDB C Driver. When an application passes untrusted text into the driver's connection-URL builder and round-trips the builder back into a client configuration, the untrusted text is...

CVE-2026-81529

Improper neutralization of delimiters in connection-URL construction allows connection-option injection in the MongoDB C Driver. When an application passes untrusted text into the driver's connection-URL builder and round-trips the builder back into a client configuration, the untrusted text is...

EUVD-2026-67212

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,...

CVE-2026-81528 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,...

CVE-2026-81528

CVE-2026-81528 affects the MongoDB C# driver , where the document-replacement code path omits the element-name/shape validation applied by equivalent write paths. This allows NoSQL injection : an application passing untrusted, loosely-typed input as a replacement value can have that input interpr...

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,...

CVE-2026-81528

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,...

CVE-2026-81528 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,...

NoSQL injection via unquoted constant GroupBy keys in LINQ pipeline translation

A NoSQL/expression injection weakness exists in the LINQ-to-aggregation query translation layer of the MongoDB C Driver, in both aggregation expression and query filter translation. When application-supplied values are embedded in certain query constructs, special elements contained within those...

CVE-2026-81527

CVE-2026-81527 is a NoSQL/expression injection flaw in the MongoDB C# Driver , specifically in the LINQ-to-aggregation query translation layer affecting both aggregation expression and query filter translation. The root cause is that unquoted constant GroupBy keys in LINQ pipeline translation are...

CVE-2026-81527 NoSQL injection via unquoted constant GroupBy keys in LINQ pipeline translation

A NoSQL/expression injection weakness exists in the LINQ-to-aggregation query translation layer of the MongoDB C Driver, in both aggregation expression and query filter translation. When application-supplied values are embedded in certain query constructs, special elements contained within those...

EUVD-2026-67211

A NoSQL/expression injection weakness exists in the LINQ-to-aggregation query translation layer of the MongoDB C Driver, in both aggregation expression and query filter translation. When application-supplied values are embedded in certain query constructs, special elements contained within those...

CVE-2026-81527

A NoSQL/expression injection weakness exists in the LINQ-to-aggregation query translation layer of the MongoDB C Driver, in both aggregation expression and query filter translation. When application-supplied values are embedded in certain query constructs, special elements contained within those...

CVE-2026-81527 NoSQL injection via unquoted constant GroupBy keys in LINQ pipeline translation

A NoSQL/expression injection weakness exists in the LINQ-to-aggregation query translation layer of the MongoDB C Driver, in both aggregation expression and query filter translation. When application-supplied values are embedded in certain query constructs, special elements contained within those...

CVE-2026-81524

MongoDB C Driver is vulnerable to cross-tenant database retargeting caused by dot and NUL injection in namespace strings. Special characters in caller-supplied database and collection name components pass without sanitization when the driver composes the target namespace, allowing an application ...

EUVD-2026-67208

A weakness in the MongoDB C Driver allows special elements in caller-supplied database and collection name components to pass without sanitization when the driver composes the target namespace for an operation. An application that incorporates untrusted input into these name components can have...