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CVE-2026-39381

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

Published: Apr 7, 2026Updated: Apr 15, 2026 Sources: CVE List NVDCWE-863
NVD MITRE
4.3CVSSMEDIUM
EPSS Score
0.2%
Top 91.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:LI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-863

Affected Products

parse-serverparseplatform
LibraryLibrary
OSS Libraries / generic-library
parse-serverparse-community
LibraryLibrary
OSS Libraries / npm
parseplatformoss-projectOSS Librariesaka parse platform
parse-communityoss-projectOSS Librariesaka parse, parse server, parse-server

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://github.com/parse-community/parse-server/pull/10406
github.com
https://github.com/parse-community/parse-server/pull/10407
github.com
https://github.com/parse-community/parse-server/security/advisories/GHSA-g4v2-qx3q-4p64
github.com

Timeline

Published
Apr 7, 2026
Last Updated
Apr 15, 2026

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