CVE-2026-30962
Medium
Description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2-alpha.6 and 8.6.19, the validation for protected fields only checks top-level query keys. By wrapping a query constraint on a protected field inside a logical operator, the check is bypassed entirely. This allows any authenticated user to query on protected fields to extract field values. All Parse Server deployments have default protected fields and are vulnerable. This vulnerability is fixed in 9.5.2-alpha.6 and 8.6.19.
SeverityMedium
CVSS6.5
Exploit probability28. percentile0.3%
ProductParseplatform Parse-server
PublishedMar 10, 2026
First seenMar 10, 2026
Weakness typeCWE-284Improper access control
How to fix
Update
- parseplatform parse-server8.6.19, 9.5.2 or later
- parse-server9.5.2-alpha.6, 8.6.19 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| parseplatform parse-server | v < 8.6.19, 9.0.0 ≤ v < 9.5.2, 9.5.2 | 8.6.19, 9.5.2 |
| parse-servernpm | 9.0.0 ≤ v < 9.5.2-alpha.6, v < 8.6.19 | 9.5.2-alpha.6, 8.6.19 |
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