Medium 6.9Published Mar 10, 2026

CVE-2026-30972Parse Server has a rate limit bypass via batch request endpoint

Updated under an hour ago (Oct 26, 2026, 8:00 PM ET)

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It affects parse-community parse-server and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for parse-community parse-server

Exploited in the last 30 days

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: 6.9 MEDIUM (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:L
Weakness (CWE): CWE-799
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Mar 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

parse-community parse-server parse_community:parse_server (from the name)	from 9.0.0 < 9.5.2-alpha.10; before 8.6.23	CNA record
parseplatform parse-server parseplatform:parse-server	before 8.6.23; from 9.0.0 before 9.5.2; 9.5.2; 9.5.2; 9.5.2; 9.5.2; 9.5.2; 9.5.2; and 3 more ranges	NVD

References

References

https://github.com/parse-community/parse-server/security/advisories/GHSA-775h-3xrc-c228	x-refsource-confirm, patch, vendor-advisory
https://github.com/parse-community/parse-server/releases/tag/8.6.23	x-refsource-misc, product, release-notes
https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.10	x-refsource-misc, product, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.