Auth bypass in Parse-Community Parse-Server
CVE-2026-31800
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2-alpha.12 and 8.6.25, the _GraphQLConfig and _Audience internal classes can be read, modified, and deleted via the generic /classes/_GraphQLConfig and /classes/_Audience REST API routes without master key authentication. This bypasses the master key enforcement that exists on the dedicated /graphql-config and /push_audiences endpoints. An attacker can read, modify and delete GraphQL configuration and push audience data. This vulnerability is fixed in 9.5.2-alpha.12 and 8.6.25.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.006 (48.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.5% 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: 0.006 · change: +0.003
Affected products
- Parse-Community Parse-Server — versions >= 9.0.0 < 9.5.2-alpha.12, < 8.6.25
- Parseplatform Parse-Server — versions 9.5.2
Weakness classification (CWE)
References
- github.com/parse-community/parse-server/security/advisories/GHSA-7xg7-rqf6-pw6c (Patch, Vendor Advisory)
- github.com/parse-community/parse-server/releases/tag/8.6.25 (Product, Release Notes)
- github.com/parse-community/parse-server/releases/tag/9.5.2-alpha.12 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-31800?
- CVE-2026-31800 is a critical-severity vulnerability in Parse-Community Parse-Server, classified under Missing Authorization. CVSS score: 9.1/10. Published 2026-03-10.
- How severe is CVE-2026-31800?
- Critical severity. CVSS v3 base score is 9.1 out of 10.