CVE-2026-30972
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.
How to fix
- parseplatform parse-server8.6.23, 9.5.2 or later
- parse-server9.5.2-alpha.10, 8.6.23 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| parseplatform parse-server | v < 8.6.23, 9.0.0 ≤ v < 9.5.2, 9.5.2 | 8.6.23, 9.5.2 |
| parse-servernpm | 9.0.0-alpha.1 ≤ v < 9.5.2-alpha.10, v < 8.6.23 | 9.5.2-alpha.10, 8.6.23 |
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