Auth bypass in Parse-Community Parse-Server
CVE-2026-32594
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.40 and 9.6.0-alpha.14, the GraphQL WebSocket endpoint for subscriptions does not pass requests through the Express middleware chain that enforces authentication, introspection control, and query complexity limits. An attacker can connect to the WebSocket endpoint and execute GraphQL operations without providing a valid application or API key, access the GraphQL schema via introspection even when public introspection is disabled, and send arbitrarily complex queries that bypass configured complexity limits. This vulnerability is fixed in 8.6.40 and 9.6.0-alpha.14.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.005 (38.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 38th percentile — 38.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.001
Affected products
- Parse-Community Parse-Server — versions >= 9.0.0 < 9.6.0-alpha.14, < 8.6.40
- Parseplatform Parse-Server — versions 9.6.0
Weakness classification (CWE)
References
- github.com/parse-community/parse-server/security/advisories/GHSA-p2x3-8689-cwpg (Patch, Mitigation, Vendor Advisory)
- github.com/parse-community/parse-server/pull/10189 (Patch, Issue Tracking)
- github.com/parse-community/parse-server/pull/10190 (Patch, Issue Tracking)
Frequently asked questions
- What is CVE-2026-32594?
- CVE-2026-32594 is a high-severity vulnerability in Parse-Community Parse-Server, classified under Missing Authentication for Critical Function. CVSS score: 7.3/10. Published 2026-03-16.
- How severe is CVE-2026-32594?
- High severity. CVSS v3 base score is 7.3 out of 10.