CVE-2026-39381: Parseplatform Parse-Server

Medium severity, CVSS 4.3. EPSS: 0.3% 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 9.8.0-alpha.7 and 8.6.75, the GET /sessions/me endpoint returns _Session fields that the server operator explicitly configured as protected via the protectedFields server option. Any authenticated user can retrieve their own session's protected fields with a single request. The equivalent GET /sessions and GET /sessions/:objectId endpoints correctly strip protected fields. This vulnerability is fixed in 9.8.0-alpha.7 and 8.6.75.

Affected products

• Parseplatform Parse-Server: before 8.6.75 (fixed in 8.6.75); from 9.0.0, before 9.8.0 (fixed in 9.8.0); version 9.8.0 only

Published 2026-04-07. Last modified 2026-07-24.