CVE-2026-32944

High

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-alpha.21 and 8.6.45, an unauthenticated attacker can crash the Parse Server process by sending a single request with deeply nested query condition operators. This terminates the server and denies service to all connected clients. Starting in version 9.6.0-alpha.21 and 8.6.45, a depth limit for query condition operator nesting has been added via the `requestComplexity.queryDepth` server option. The option is disabled by default to avoid a breaking change. To mitigate, upgrade and set the option to a value appropriate for your app. No known workarounds are available.

SeverityHigh
CVSS7.5
Exploit probability—
ProductParseplatform Parse-server
PublishedMar 18, 2026
First seenMar 18, 2026
Weakness typeCWE-674CWE-674

How to fix

Update
  • parseplatform parse-server8.6.45, 9.6.0 or later
  • parse-server9.6.0-alpha.21, 8.6.45 or later

Affected products

ProductAffected versionsFixed in
parseplatform parse-serverv < 8.6.45, 9.0.0 ≤ v < 9.6.0, 9.6.08.6.45, 9.6.0
parse-servernpm9.0.0 ≤ v < 9.6.0-alpha.21, v < 8.6.459.6.0-alpha.21, 8.6.45

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