CVE-2026-39381CWE-863

Parse Server's Endpoint `/sessions/me` bypasses `_Session` `protectedFields`

Medium · published April 7, 2026

CVSS v4.0
5.3
EPSS
0%
Percentile
23.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
5.3 · MEDIUM
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
EPSS
0.00317 · 23.4th percentile
Weakness
CWE-863 · Incorrect Authorization
Published
2026-04-07T19:51Z
EPSS history
Timeline
  • 07 APR 19:51Z
    Parse Server's Endpoint `/sessions/me` bypasses `_Session` `protectedFields`
    cvelistv5