Parse Server has a rate limit bypass via batch request endpoint

Description

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.

Recommendation

Update the parse-server package to the latest compatible version. Followings are version details:

• Affected version(s): **< 8.6.23

  >= 9.0.0-alpha.1, < 9.5.2-alpha.10**

• Patched version(s): **8.6.23

  9.5.2-alpha.10**

References

• GHSA-775h-3xrc-c228
• CVE-2026-30972
• CWE-799
• CAPEC-310
• OWASP 2021-A4
• OWASP 2021-A6

Related Issues

• Parse Server has a password reset token single-use bypass via concurrent requests - CVE-2026-32943
• Parse Server has a protected fields bypass via dot-notation in query and sort - CVE-2026-31872
• Parse Server has Denial of Service (DoS) and Cloud Function Dispatch Bypass via Prototype Chain Resolution - CVE-2026-30939
• Parse Server has a protected fields bypass via logical query operators - CVE-2026-30962

Tags:

npm

parse-server