SQL injection in Parse Server - CVE-2026-33539
Published: April 6, 2026
Vulnerability identifier: #VU125009
CSH Severity: Low
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-33539
CWE-ID: CWE-89
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary SQL statements on the PostgreSQL database.
The vulnerability exists due to SQL injection in the PostgreSQL adapter when processing field name parameters in the aggregate $group pipeline stage or the distinct operation. A remote privileged user can inject SQL metacharacters into crafted field name parameters to execute arbitrary SQL statements on the PostgreSQL database.
Only deployments using PostgreSQL are affected; MongoDB deployments are not affected.
Affected software
Parse Server
How to mitigate CVE-2026-33539
Install security update from vendor's website.
Parse Server - addressed in versions 8.6.59, 9.6.0 alpha.53