CVE-2026-34373
Severity CVSS v4.0:
MEDIUM
Type:
Unavailable / Other
Publication date:
31/03/2026
Last modified:
31/03/2026
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.
Impact
Base Score 4.0
5.30
Severity 4.0
MEDIUM
References to Advisories, Solutions, and Tools
- https://github.com/parse-community/parse-server/commit/0347641507891d0013ec57f7c10f012064f41263
- https://github.com/parse-community/parse-server/commit/4dd0d3d8be1c39664c74ad10bb0abaa76bc41203
- https://github.com/parse-community/parse-server/pull/10334
- https://github.com/parse-community/parse-server/pull/10335
- https://github.com/parse-community/parse-server/security/advisories/GHSA-q3p6-g7c4-829c