SB2026040768 - Improper access control in Parse Server
Published: April 7, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper access control (CVE-ID: CVE-2026-30966)
The vulnerability allows a remote attacker to bypass access controls and gain unauthorized access to protected data and operations.
The vulnerability exists due to improper access control in internal relationship tables when handling direct REST API or GraphQL API operations using only the application key. A remote attacker can create, read, update, or delete records in `_Join` tables to bypass access controls and gain unauthorized access to protected data and operations.
Exploitation can allow injection into Parse Roles and can also bypass class-level permissions that rely on Relation fields used in `pointerFields` CLP.
Remediation
Install update from vendor's website.