CVE-2026-32098
Parse Server has a protected fields bypass via LiveQuery subscription WHERE clause
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.9 and 8.6.35, an attacker can exploit LiveQuery subscriptions to infer the values of protected fields without directly receiving them. By subscribing with a WHERE clause that references a protected field (including via dot-notation or $regex), the attacker can observe whether LiveQuery events are delivered for matching objects. This creates a boolean oracle that leaks protected field values. The attack affects any class that has both protectedFields configured in Class-Level Permissions and LiveQuery enabled. This vulnerability is fixed in 9.6.0-alpha.9 and 8.6.35.
| CWE | CWE-200 |
| Vendor | parse-community |
| Product | parse-server |
| Published | Mar 11, 2026 |
| Last Updated | Mar 12, 2026 |
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