High severity · published Mar 24, 2026
CVE-2026-33539
Parse Server: SQL injection via aggregate and distinct field names in PostgreSQL adapter
7.2
CVSS
0.5%
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 versions 8.6.59 and 9.6.0-alpha.53, an attacker with master key access can execute arbitrary SQL statements on the PostgreSQL database by injecting SQL metacharacters into field name parameters of the aggregate $group pipeline stage or the distinct operation. This allows privilege escalation from Parse Server application-level administrator to PostgreSQL database-level access. Only Parse Server deployments using PostgreSQL are affected. MongoDB deployments are not affected. This issue has been patched in versions 8.6.59 and 9.6.0-alpha.53.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 40% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PA
parse-server · parse-community
< 8.6.59; >= 9.0.0, < 9.6.0-alpha.53 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-33539
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-33539
Patch
https://github.com/parse-community/parse-server/commit/03249f9bf5b8783c8b848f84dab791ff0b761b8c
Patch
https://github.com/parse-community/parse-server/commit/bdddab5f8b61a40cb8fc62dd895887bdd2f3838e
Issue Tracking
https://github.com/parse-community/parse-server/pull/10272
Issue Tracking
https://github.com/parse-community/parse-server/pull/10273
Vendor Advisory
https://github.com/parse-community/parse-server/security/advisories/GHSA-p2w6-rmh7-w8q3
More from parse-server
10.0
CVE-2026-30966
Parse Server role escalation and CLP bypass via direct `_Join` table write
9.8
CVE-2026-32248
Parse Server: Account takeover via operator injection in authentication data identifier
9.8
CVE-2026-31871
Parse Server has a SQL Injection via dot-notation sub-key name in `Increment` operation on PostgreSQL
9.8
CVE-2026-31856
Parse Server has a SQL injection via `Increment` operation on nested object field in PostgreSQL
9.8
CVE-2026-31840
Parse Server has a SQL injection via dot-notation field name in PostgreSQL