CVE-2026-34573

High CVSS: 8.2

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.68 and 9.7.0-alpha.12, the GraphQL query complexity validator can be exploited to cause a denial-of-service by sending a crafted query with binary fan-out fragment spreads. A single unauthenticated request can block the Node.js event loop for seconds, denying service to all concurrent users. This only affects deployments that have enabled the requestComplexity.graphQLDepth or requestComplexity.graphQLFields configuration options. This issue has been patched in versions 8.6.68 and 9.7.0-alpha.12.

Vendor

Parseplatform

Product

Parse-server

CWE

CWE-407

Yayın Tarihi

2026-03-31 16:16:33

Güncelleme

2026-04-02 17:31:49

Source Identifier

security-advisories@github.com

KEV Date Added

Kategoriler

CWE-407 Parse-server HIGH Parseplatform 2026

Referanslar

https://github.com/parse-community/parse-server/commit/ea15412795f34594cc8a674fe858d445675e0295 https://github.com/parse-community/parse-server/commit/f759bda075298ec44e2b4fb57659a0c56620483b https://github.com/parse-community/parse-server/pull/10344 https://github.com/parse-community/parse-server/pull/10345 https://github.com/parse-community/parse-server/security/advisories/GHSA-mfj6-6p54-m98c