Vulnerability Description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.55 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Parseplatform | Parse-Server | < 8.6.55 |
Related Weaknesses (CWE)
References
- https://github.com/parse-community/parse-server/commit/2581b5426047ce9cbcd3d9c0ePatch
- https://github.com/parse-community/parse-server/commit/85994eff9e7b34cac7e1a2f57Patch
- https://github.com/parse-community/parse-server/pull/10257Issue Tracking
- https://github.com/parse-community/parse-server/pull/10258Issue Tracking
- https://github.com/parse-community/parse-server/security/advisories/GHSA-9fjp-q3Vendor Advisory
FAQ
What is CVE-2026-33498?
CVE-2026-33498 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 reques...
How severe is CVE-2026-33498?
CVE-2026-33498 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-33498?
Check the references section above for vendor advisories and patch information. Affected products include: Parseplatform Parse-Server.