CVE-2026-73562
Description
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://github.com/Automattic/mongoose/security/advisories/GHSA-664h-wqgq-64gw
- https://github.com/Automattic/mongoose/pull/16230
- https://github.com/Automattic/mongoose/commit/f494b8430f9097fc70446d6949c8a42a27518e0b
- https://github.com/Automattic/mongoose
- https://github.com/Automattic/mongoose/releases/tag/6.13.10
- https://github.com/Automattic/mongoose/releases/tag/7.8.10
- https://github.com/Automattic/mongoose/releases/tag/8.24.1
- https://github.com/Automattic/mongoose/releases/tag/9.7.2
- https://github.com/Automattic/mongoose/commit/35a3f33bc9a0a28671f99e3c5010000425650d0f
- https://github.com/Automattic/mongoose/commit/7285466b860d3b511f8d07b2ab72656703ee707a
- https://github.com/Automattic/mongoose/commit/953d085bee5a16b5d6c5af33a156e6314d6d9a45
- https://github.com/Automattic/mongoose/commit/fab793b747131c68927888cba41cf3e6d6593740
CWEs
CWE-1321
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.