GitHub Advisoryadvisory · npm
GHSA-9fjp-q3c4-6w3j Parse Server has a query condition depth bypass via pre-validation transform pipeline
HIGH
Official page ↗
- Aliases
- CVE-2026-33498
- Ecosystem
- npm
- Packages
- parse-server
- Severity
- High
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-674
- Reviewed
- 2026-03-20
Affected packages
• npm parse-server: >= 9.0.0, < 9.6.0-alpha.44 → fixed in 9.6.0-alpha.44
• npm parse-server: < 8.6.55 → fixed in 8.6.55
Description
Impact
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.
Patches
The query condition nesting depth is now validated before the query enters the transformation pipeline, preventing deeply nested structures from being recursively processed before the existing depth guard can fire.
Workarounds
None.
Related
Alias · CVE (1)
- CVE-2026-33498 Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. vulnerability
Weakness · CWE (1)
- CWE-674 Uncontrolled Recursion weakness
References
- https://github.com/parse-community/parse-server/security/advisories/GHSA-9fjp-q3c4-6w3j web
- https://nvd.nist.gov/vuln/detail/CVE-2026-33498 advisory
- https://github.com/parse-community/parse-server/pull/10257 web
- https://github.com/parse-community/parse-server/pull/10258 web
- https://github.com/parse-community/parse-server/commit/2581b5426047ce9cbcd3d9c0e8379e9c30e23ab5 web
- https://github.com/parse-community/parse-server/commit/85994eff9e7b34cac7e1a2f5791985022a1461d1 web
- https://github.com/parse-community/parse-server package