Vulnerability Description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.6 and 8.6.32, the protectedFields class-level permission (CLP) can be bypassed using dot-notation in query WHERE clauses and sort parameters. An attacker can use dot-notation to query or sort by sub-fields of a protected field, enabling a binary oracle attack to enumerate protected field values. This affects both MongoDB and PostgreSQL deployments. This vulnerability is fixed in 9.6.0-alpha.6 and 8.6.32.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Parseplatform | Parse-Server | < 8.6.32 |
Related Weaknesses (CWE)
References
- https://github.com/parse-community/parse-server/releases/tag/8.6.32ProductRelease Notes
- https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.6ProductRelease Notes
- https://github.com/parse-community/parse-server/security/advisories/GHSA-r2m8-pxPatchVendor Advisory
FAQ
What is CVE-2026-31872?
CVE-2026-31872 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 9.6.0-alpha.6 and 8.6.32, the protectedFields class-level permission (CLP) can be bypas...
How severe is CVE-2026-31872?
CVE-2026-31872 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-2026-31872?
Check the references section above for vendor advisories and patch information. Affected products include: Parseplatform Parse-Server.