High
Parse Server: SQL injection via aggregate and distinct field names in PostgreSQL adapter
Type: advisorySources: OSV
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-33539
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 2 Nov 2026, 20:41 UTC · Revision 1
Source evidence
Parse Server: SQL injection via aggregate and distinct field names in PostgreSQL adapter
core-osv · Original sourcePublished 24 Mar 2026, 18:26 UTC
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.
osv:CVE-2026-33539
Complete source record
{
"id": "e1387f1a5d17062b4d5a4fee64fcc12dae05f2bacd1a3393171c7f11edb45354",
"url": "https://osv.dev/vulnerability/CVE-2026-33539",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Parse Server: SQL injection via aggregate and distinct field names in PostgreSQL adapter",
"summary": "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.",
"evidence": "osv:CVE-2026-33539",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-33539",
"aliases": [
"BIT-parse-2026-33539",
"CVE-2026-33539",
"GHSA-p2w6-rmh7-w8q3"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "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"
}
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"modified": "2026-10-28T02:30:23.579032504Z",
"provider": "osv",
"references": [
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"https://github.com/parse-community/parse-server/security/advisories/GHSA-p2w6-rmh7-w8q3",
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"source_id": "core-osv",
"document_id": 489978,
"published_at": "2026-03-24T18:26:56.046+00:00"
}