Resource exhaustion in Parse-Community Parse-Server
CVE-2026-30946
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.006 (48.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 48th percentile — 48.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.001
Affected products
- Parse-Community Parse-Server — versions < 8.6.15, >= 9.0.0 < 9.5.2-alpha.2
- Parseplatform Parse-Server — versions 9.5.2
Weakness classification (CWE)
References
- github.com/parse-community/parse-server/security/advisories/GHSA-cmj3-wx7h-ffvg (Patch, Vendor Advisory)
- github.com/parse-community/parse-server/releases/tag/8.6.15 (Product, Release Notes)
- github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.2 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-30946?
- CVE-2026-30946 is a high-severity vulnerability in Parse-Community Parse-Server, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-03-10.
- How severe is CVE-2026-30946?
- High severity. CVSS v3 base score is 7.5 out of 10.