CVE-2026-32098

Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0 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 and 8.6.35.

How to fix CVE-2026-32098

To remediate CVE-2026-32098, upgrade the affected package to a fixed version below.

• —upgrade to 8.6.35 or later
• —upgrade to 9.6.0-alpha.9 or later

Is CVE-2026-32098 being exploited?

Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.

Affected packages (2)

• from 0, < 8.6.35, >= 9.0.0, < 9.6.0
• >= 9.0.0, < 9.6.0-alpha.9

CVSS scores

References (5)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2026-32098
• PATCHgithub.com/parse-community/parse-server
• WEBgithub.com/parse-community/parse-server/releases/tag/8.6.35
• WEBgithub.com/parse-community/parse-server/releases/tag/9.6.0-alpha.9