Medium severity · published Apr 7, 2026
CVE-2026-39381
Parse Server's Endpoint `/sessions/me` bypasses `_Session` `protectedFields`
4.3
CVSS
0.2%
EPSS
No
On KEV
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
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PA
parse-server · parse-community
>= 9.0.0, < 9.8.0-alpha.7; >= 7.0.0, < 8.6.75 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-39381
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-39381
Issue Tracking
https://github.com/parse-community/parse-server/pull/10406
Issue Tracking
https://github.com/parse-community/parse-server/pull/10407
Patch
https://github.com/parse-community/parse-server/security/advisories/GHSA-g4v2-qx3q-4p64
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