GHSA-gqpp-xgvh-9h7h
Parse Server vulnerable to SQL Injection via dot-notation sub-key name in `Increment` operation on PostgreSQL
Details
### Impact
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 sub-key name is interpolated directly into SQL string literals without escaping. An attacker who can send write requests to the Parse Server REST API can inject arbitrary SQL via a crafted sub-key name containing single quotes, potentially executing commands or reading data from the database, bypassing CLPs and ACLs.
Only Postgres deployments are affected.
### Patches
The fix escapes single quotes in the sub-key name before interpolating it into the SQL query, preventing breakout from SQL string literals.
### Workarounds
There is no known workaround.
### References
- GitHub security advisory: https://github.com/parse-community/parse-server/security/advisories/GHSA-gqpp-xgvh-9h7h - Fix Parse Server 9: https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.5 - Fix Parse Server 8: https://github.com/parse-community/parse-server/releases/tag/8.6.31
Are you affected?
Enter the version of the package you're using.
Affected packages
9.0.0-alpha.1 Fixed in: 9.6.0-alpha.5 npm install parse-server@9.6.0-alpha.5 References
- https://github.com/parse-community/parse-server/security/advisories/GHSA-gqpp-xgvh-9h7h [WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2026-31871 [ADVISORY]
- https://github.com/parse-community/parse-server [PACKAGE]
- https://github.com/parse-community/parse-server/releases/tag/8.6.31 [WEB]
- https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.5 [WEB]