CVE-2026-44840

Description

Dgraph is an open source distributed GraphQL database. Prior to version 25.3.4, the `checkUserPassword` GraphQL query in Dgraph is vulnerable to DQL (Dgraph Query Language) injection. User-supplied password values are interpolated directly into a DQL `checkpwd()` query via `fmt.Sprintf` without any escaping or parameterization. An attacker can inject a password containing a double-quote character to break out of the DQL string literal and append arbitrary DQL query blocks. Version 25.3.4 patches the issue.

CVSS Vector

References

• https://github.com/dgraph-io/dgraph/commit/cee702c93f141eeb0c96a81f70830ec9e459efac
• https://github.com/dgraph-io/dgraph/releases/tag/v25.3.4
• https://github.com/dgraph-io/dgraph/security/advisories/GHSA-q2m9-6jp9-c6mc