CVE-2026-32944

moderate-risk

Published 2026-03-18

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.

Do I need to act?

0.02% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.5/10 High

NETWORK / LOW complexity

Affected Products (20)

Parse-Server

Affected Vendors

Parseplatform

References (3)

Issue Tracking https://github.com/parse-community/parse-server/pull/10202

Issue Tracking https://github.com/parse-community/parse-server/pull/10203

Vendor Advisory https://github.com/parse-community/parse-server/security/advisories/GHSA-9xp9-j9...

/ 100

moderate-risk

Severity 26/34 · High

Exploitability 0/34 · Minimal

Exposure 20/34 · Moderate