High
Parse Server: Query condition depth bypass via pre-validation transform pipeline
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 8.6.55 and 9.6.0-alpha.44, an attacker can send an unauthenticated HTTP request with a deeply nested query containing logical operators to permanently hang the Parse Server process. The server becomes completely unresponsive and must be manually restarted. This is a bypass of the fix for CVE-2026-32944. This issue has been patched in versions 8.6.55 and 9.6.0-alpha.44.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-33498
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 16:45 UTC · Revision 1
Source evidence
Parse Server: Query condition depth bypass via pre-validation transform pipeline
core-osv · Original sourcePublished 24 Mar 2026, 18:18 UTC
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.55 and 9.6.0-alpha.44, an attacker can send an unauthenticated HTTP request with a deeply nested query containing logical operators to permanently hang the Parse Server process. The server becomes completely unresponsive and must be manually restarted. This is a bypass of the fix for CVE-2026-32944. This issue has been patched in versions 8.6.55 and 9.6.0-alpha.44.
osv:CVE-2026-33498
Complete source record
{
"id": "d3062c2f2e1b5584b77745112d9e2d83085d45ca3d6094778896cc7cb9810495",
"url": "https://osv.dev/vulnerability/CVE-2026-33498",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Parse Server: Query condition depth bypass via pre-validation transform pipeline",
"summary": "Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.55 and 9.6.0-alpha.44, an attacker can send an unauthenticated HTTP request with a deeply nested query containing logical operators to permanently hang the Parse Server process. The server becomes completely unresponsive and must be manually restarted. This is a bypass of the fix for CVE-2026-32944. This issue has been patched in versions 8.6.55 and 9.6.0-alpha.44.",
"evidence": "osv:CVE-2026-33498",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-33498",
"aliases": [
"BIT-parse-2026-33498",
"CVE-2026-33498",
"GHSA-9fjp-q3c4-6w3j"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
}
],
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],
"modified": "2026-10-28T02:30:30.843234666Z",
"provider": "osv",
"references": [
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33498.json",
"https://github.com/parse-community/parse-server/security/advisories/GHSA-9fjp-q3c4-6w3j",
"https://nvd.nist.gov/vuln/detail/CVE-2026-33498",
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"source_id": "core-osv",
"document_id": 497513,
"published_at": "2026-03-24T18:18:44.587+00:00"
}