Vulnerability Description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior o 9.5.2-alpha.10 and 8.6.23, Parse Server's rate limiting middleware is applied at the Express middleware layer, but the batch request endpoint (/batch) processes sub-requests internally by routing them directly through the Promise router, bypassing Express middleware including rate limiting. An attacker can bundle multiple requests targeting a rate-limited endpoint into a single batch request to circumvent the configured rate limit. Any Parse Server deployment that relies on the built-in rate limiting feature is affected. This vulnerability is fixed in 9.5.2-alpha.10 and 8.6.23.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Parseplatform | Parse-Server | < 8.6.23 |
Related Weaknesses (CWE)
References
- https://github.com/parse-community/parse-server/releases/tag/8.6.23ProductRelease Notes
- https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.10ProductRelease Notes
- https://github.com/parse-community/parse-server/security/advisories/GHSA-775h-3xPatchVendor Advisory
FAQ
What is CVE-2026-30972?
CVE-2026-30972 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 o 9.5.2-alpha.10 and 8.6.23, Parse Server's rate limiting middleware is applied at the Exp...
How severe is CVE-2026-30972?
CVE-2026-30972 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-2026-30972?
Check the references section above for vendor advisories and patch information. Affected products include: Parseplatform Parse-Server.