CVE-2026-39381 MEDIUM

CVE-2026-39381: Parse Server's Endpoint `/sessions/me` bypasses `_Session` `protectedFields`

Vendor Parse-Community
Product parse-server
Weakness CWE-863 · Incorrect authorization
Published April 7, 2026
Last update April 7, 2026
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 7, 2026 CVE published
April 7, 2026 Record updated