Information disclosure in Parse Server - #VU149932
Published: September 15, 2026
Vulnerability identifier: #VU149932
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose protected field values.
The vulnerability exists due to improper authorization caused by incomplete subscriber identity resolution in LiveQuery protectedFields permission evaluation when handling LiveQuery subscriptions. A remote user can create a subscription to receive field values withheld by the REST API.
Applications are affected when LiveQuery is enabled on a class using protectedFields for role, authenticated, or per-user groups.
Affected software
Parse Server
Remediation
Install security update from vendor's website.
Parse Server - addressed in versions 8.6.89, 9.10.1 alpha.8