Incorrect authorization in Parse Server - CVE-2026-39381
Published: April 7, 2026
Vulnerability identifier: #VU125034
CSH Severity: Low
CVSS v4: 5.3 [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]
CVE-ID: CVE-2026-39381
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose protected session fields.
The vulnerability exists due to incorrect authorization in the GET /sessions/me endpoint when handling requests for the caller's session. A remote user can send a request to retrieve protected session fields.
The issue affects the /sessions/me endpoint, while the equivalent /sessions and /sessions/:objectId endpoints correctly strip protected fields.
Affected software
Parse Server
How to mitigate CVE-2026-39381
Install security update from vendor's website.
Parse Server - addressed in versions 8.6.75, 9.8.0 alpha.7