CVE-2026-34373

Parse Server: GraphQL API endpoint ignores CORS origin restriction

CVSS 5.3 MEDIUMEPSS 0.2%CWE-346

Vexday Risk Score

13Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS 5.3EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

31 mar 2026Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

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:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N

Productos afectados

parse-community · parse-server

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Referencias

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