CVE-2026-32098

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-200

• https://github.com/parse-community/parse-server/releases/tag/8.6.35Product, Release Notes
• https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.9Product, Release Notes
• https://github.com/parse-community/parse-server/security/advisories/GHSA-j7mm-f4rv-6q6qMitigation, Patch, Vendor Advisory

Published

Mar 11, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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