CVE-2026-34784: Parseplatform Parse-Server

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.71 and 9.7.1-alpha.1, file downloads via HTTP Range requests bypass the afterFind(Parse.File) trigger and its validators on storage adapters that support streaming (e.g. the default GridFS adapter). This allows access to files that should be protected by afterFind trigger authorization logic or built-in validators such as requireUser. This issue has been patched in versions 8.6.71 and 9.7.1-alpha.1.

Affected products

• Parseplatform Parse-Server: before 8.6.71 (fixed in 8.6.71); from 9.0.0, before 9.7.1 (fixed in 9.7.1)

Published 2026-03-31. Last modified 2026-07-24.