SQL Injection in Parse-Community Parse-Server
CVE-2026-31856
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. A SQL injection vulnerability exists in the PostgreSQL storage adapter when processing Increment operations on nested object fields using dot notation (e.g., stats.counter). The amount value is interpolated directly into the SQL query without parameterization or type validation. An attacker who can send write requests to the Parse Server REST API can inject arbitrary SQL subqueries to read any data from the database, bypassing CLPs and ACLs. MongoDB deployments are not affected. This vulnerability is fixed in 9.6.0-alpha.3 and 8.6.29.
Vulnerability class: SQL Injection
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (45.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.006 · change: +0.001
Affected products
- Parse-Community Parse-Server — versions >= 9.0.0 < 9.6.0-alpha.3, < 8.6.29
- Parseplatform Parse-Server — versions 9.6.0
Weakness classification (CWE)
References
- github.com/parse-community/parse-server/security/advisories/GHSA-q3vj-96h2-gwvg (Patch, Vendor Advisory)
- github.com/parse-community/parse-server/releases/tag/8.6.29 (Product, Release Notes)
- github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.3 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-31856?
- CVE-2026-31856 is a critical-severity vulnerability in Parse-Community Parse-Server, classified under SQL Injection. CVSS score: 9.8/10. Published 2026-03-11.
- How severe is CVE-2026-31856?
- Critical severity. CVSS v3 base score is 9.8 out of 10.