CVE-2026-73562 Mongoose: Prototype pollution in the update casting via __proto__-prefixed dotted path (Schema._getSchema/path getter)

Mongoose is a MongoDB object modeling tool designed to work in an asynchronous environment. Prior to 6.13.10, 7.8.10, 8.24.1, and 9.7.2, passing a user-controlled update such as MyModel.updateOnefilter, req.body can exploit Mongoose update casting with a proto.x dotted path under $set...

CVE-2026-73562 Mongoose: Prototype pollution in the update casting via __proto__-prefixed dotted path (Schema._getSchema/path getter)

Mongoose is a MongoDB object modeling tool designed to work in an asynchronous environment. Prior to 6.13.10, 7.8.10, 8.24.1, and 9.7.2, passing a user-controlled update such as MyModel.updateOnefilter, req.body can exploit Mongoose update casting with a proto.x dotted path under $set...

CVE-2026-73562

CVE-2026-73562 describes a prototype-pollution vulnerability in Mongoose (MongoDB object modeling tool) via update casting that can occur when a user-controlled update uses a proto -prefixed dotted path under $set. Prior to versions 6.13.10, 7.8.10, 8.24.1, and 9.7.2, schema logic can treat inher...

Mongoose: Prototype pollution in mongoose update casting via __proto__-prefixed dotted path (Schema._getSchema/path getter)

Impact What kind of vulnerability is it? Who is impacted? Prototype pollution in update casting: passing a user-controlled update to a Mongoose update, like MyModel.updateOnefilter, req.body, can cause Mongoose to set $fullPath and $parentSchemaDocArray on Object.prototype. Example: javascript...

GHSA-664H-WQGQ-64GW Mongoose: Prototype pollution in mongoose update casting via __proto__-prefixed dotted path (Schema._getSchema/path getter)

Impact What kind of vulnerability is it? Who is impacted? Prototype pollution in update casting: passing a user-controlled update to a Mongoose update, like MyModel.updateOnefilter, req.body, can cause Mongoose to set $fullPath and $parentSchemaDocArray on Object.prototype. Example: javascript...