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NVD HIGH: CVE-2026-34373 — Parse Server is an open source backend that can be deployed to any infrastructur...

Tuesday, March 31, 2026 at 03:16 PM UTC·Source: NIST NVD

Updated: Monday, April 6, 2026 at 02:17 AM UTC

Executive Summary

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

Analysis

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. CVSS Score: 8.8. Published: 2026-03-31T15:16:19.060.

Indicators of Compromise (1)

CVE (1)
CVE-2026-34373
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Mar 31, 2026. Verified by: NIST.

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