Vulnerability · Published Mar 11, 2026 · Assigned by GitHub_M

CVE-2026-31840Parse Server has a SQL injection via dot-notation field name in PostgreSQL

Critical 9.3

In plain English

A critical-severity SQL injection in parse-server from parse-community. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 4.0)9.3Critical

Exploit odds (30 days)0.5%top 58.8% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.2 and 8.6.28, an attacker can use a dot-notation field name in combination with the sort query parameter to inject SQL into the PostgreSQL database through an improper escaping of sub-field values in dot-notation queries. The vulnerability may also affect queries that use dot-notation field names with the distinct and where query parameters. This vulnerability only affects deployments using a PostgreSQL database. This vulnerability is fixed in 9.6.0-alpha.2 and 8.6.28.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	parse-server	9.6.0-alpha.2	GHSA-qpr4-jrj4-6f27
npm	parse-server	8.6.28	GHSA-qpr4-jrj4-6f27

Affected products (as reported)

Vendor	Product	Versions
parse-community	parse-server	>= 9.0.0 < 9.6.0-alpha.2< 8.6.28

Weakness: CWE-89 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References

https://github.com/parse-community/parse-server/security/advisories/GHSA-qpr4-jrj4-6f27 x_refsource_CONFIRM
https://github.com/parse-community/parse-server/releases/tag/8.6.28 x_refsource_MISC
https://github.com/parse-community/parse-server/releases/tag/9.6.0-alpha.2 x_refsource_MISC