CVE-2026-30972 Parse Server has a rate limit bypass via batch request endpoint
Attackers can bypass rate limits by bundling requests into batch endpoints, affecting Parse Server deployments relying on built-in rate limiting.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-30972?
CVE-2026-30972 is a medium-severity vulnerability in Parseplatform Parse-Server, published on 10 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-799
Which versions are affected by CVE-2026-30972?
5 open source packages ship an affected version, including parse-server and parse. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
parse-server npm | All versions | 8.6.23 |
parse-server npm | All versions | 8.6.23 |
parse-server npm | From 9.0.0-alpha.1 | 9.5.2-alpha.10 |
parse-server npm | From 9.0.0-alpha.1 | 9.5.2-alpha.10 |
parse Bitnami | All versions | 8.6.23, 9.5.2 |
Products include Parseplatform Parse-Server.
How do I fix CVE-2026-30972?
Upgrade parse-server to a fixed version for your release line: 8.6.23 or 9.5.2-alpha.10.
Is CVE-2026-30972 being exploited?
There is no known exploitation of CVE-2026-30972 in the wild and no public exploit code.
Other vulnerabilities in Parseplatform Parse-Server
- CVE-2026-30966 Parse Server role escalation and CLP bypass via direct `_Join` table write
- CVE-2024-27298 Parse Server literalizeRegexPart SQL Injection
- CVE-2022-24760 Command Injection in Parse server
- CVE-2026-30965 Parse Server session token exfiltration via `redirectClassNameForKey` query parameter
- CVE-2023-36475 Parse Server vulnerable to remote code execution via MongoDB BSON parser through prototype pollution
Sources
Also known as BIT-parse-2026-30972, GHSA-775h-3xrc-c228.