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CVE-2026-73562

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

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.updateOne(filter, req.body) can exploit Mongoose update casting with a __proto__.x dotted path under $set. Schema.prototype.path and Schema.prototype._getPathType can treat inherited properties of schema.paths and schema.nested as schema types, allowing the casting process to set $fullPath and $parentSchemaDocArray on Object.prototype before throwing. This prototype pollution makes those properties visible on newly created objects and can cause application integrity and availability impacts. This issue is fixed in versions 6.13.10, 7.8.10, 8.24.1, and 9.7.2.

CVSS 6.5 · Medium · EPSS 0.5% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • mongoose

    Versions
    • < 6.13.10: Affected
    • >= 7.0.0, < 7.8.10: Affected
    • >= 8.0.0, < 8.24.1: Affected
    • >= 9.0.0, < 9.7.2: Affected

    No fix published

  • mongoose npm

    Affected ranges
    • SEMVER: < 6.13.10

    Update to 6.13.10

  • mongoose npm

    Affected ranges
    • SEMVER: ≥ 7.0.0, < 7.8.10

    Update to 7.8.10

  • mongoose npm

    Affected ranges
    • SEMVER: ≥ 8.0.0, < 8.24.1

    Update to 8.24.1

  • mongoose npm

    Affected ranges
    • SEMVER: ≥ 9.0.0, < 9.7.2

    Update to 9.7.2

Original sources

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