High 8.7Published Mar 10, 2026

CVE-2026-30946Parse Server affected by denial-of-service via unbounded query complexity in REST and GraphQL API

Updated under an hour ago (Oct 27, 2026, 6:10 AM 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 9.5.2-alpha.2 and 8.6.15, an unauthenticated attacker can exhaust Parse Server resources (CPU, memory, database connections) through crafted queries that exploit the lack of complexity limits in the REST and GraphQL APIs. All Parse Server deployments using the REST or GraphQL API are affected. This vulnerability is fixed in 9.5.2-alpha.2 and 8.6.15.

CVSS: 8.7 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Weakness (CWE): CWE-770
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)	before 8.6.15; from 9.0.0 < 9.5.2-alpha.2	CNA record
parseplatform parse-server parseplatform:parse-server	before 8.6.15; from 9.0.0 before 9.5.2; 9.5.2	NVD

References

References

https://github.com/parse-community/parse-server/security/advisories/GHSA-cmj3-wx7h-ffvg	x-refsource-confirm, patch, vendor-advisory
https://github.com/parse-community/parse-server/releases/tag/8.6.15	x-refsource-misc, product, release-notes
https://github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.2	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.