CVE-2026-34373

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.

The following products are affected by CVE-2026-34373 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-34373.

URL	Resource
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