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OpenAdvisories
Medium · 5.3 CVE-2026-34373 BIT-parse-2026-34373EUVD-2026-17465GHSA-q3p6-g7c4-829c

Parse Server: GraphQL API endpoint ignores CORS origin restriction

Published Mar 31, 2026 · Updated Mar 31, 2026 · Assigned by GitHub_M

Description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.66 and 9.7.0-alpha.10, the GraphQL API endpoint does not respect the allowOrigin server option and unconditionally allows cross-origin requests from any website. This bypasses origin restrictions that operators configure to control which websites can interact with the Parse Server API. The REST API correctly enforces the configured allowOrigin restriction. This issue has been patched in versions 8.6.66 and 9.7.0-alpha.10.

Affected products

VendorProductAffectedFixed
parse-community parse-server < 8.6.66, >= 9.0.0, < 9.7.0-alpha.10 —

Affected packages

EcosystemPackageAffectedFixedRecord
npm parse-server >= 9.0.0, < 9.7.0-alpha.10 9.7.0-alpha.10 GHSA-q3p6-g7c4-829c
npm parse-server >= 3.5.0, < 8.6.66 8.6.66 GHSA-q3p6-g7c4-829c

References