PatchSiren cyber security CVE debrief
CVE-2026-44840 dgraph-io CVE debrief
CVE-2026-44840 is a DQL injection vulnerability in Dgraph's GraphQL database. The vulnerability exists in the `checkUserPassword` GraphQL query and allows an attacker to inject malicious DQL queries. This could lead to unauthorized data access or modifications. Users should apply patches and restrict user-supplied input. The CVE record was published on 2026-07-08T14:16:59.493Z and last modified on 2026-07-09T15:16:35.207Z. The NVD entry is currently Deferred.
- Vendor
- dgraph-io
- Product
- dgraph
- CVSS
- HIGH 7.5
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-07-08
- Original CVE updated
- 2026-07-09
- Advisory published
- 2026-07-08
- Advisory updated
- 2026-07-09
Who should care
Users of Dgraph versions prior to 25.3.4 should apply the patch to prevent exploitation. Security teams and operators managing Dgraph deployments need to assess their exposure and implement compensating controls if patches cannot be applied immediately. This includes reviewing and restricting user-supplied input to the `checkUserPassword` GraphQL query.
Technical summary
The `checkUserPassword` GraphQL query in Dgraph is vulnerable to DQL injection. User-supplied password values are interpolated directly into a DQL `checkpwd()` query via `fmt.Sprintf` without escaping or parameterization. An attacker can inject a password with a double-quote character to append arbitrary DQL query blocks. This vulnerability can be mitigated by applying patches and restricting user-supplied input.
Defensive priority
High
Recommended defensive actions
- Apply the patch to upgrade to Dgraph version 25.3.4 or later
- Review and restrict user-supplied input to the `checkUserPassword` GraphQL query
- Implement additional security measures to detect and prevent DQL injection attacks
- Review compensating controls for exposed systems while remediation is scheduled and verified
- Check relevant monitoring, detection, and logs for exposed assets that need extra review
- Track exceptions, retest remediated assets, and close the item only after evidence is documented
- Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up
Evidence notes
The CVE record was published on 2026-07-08T14:16:59.493Z and last modified on 2026-07-09T15:16:35.207Z. The NVD entry is currently Deferred. Evidence is limited to CVE and NVD details. Defenders should verify affected Dgraph deployments and review vendor guidance for patching. Additional verification steps are recommended to ensure the accuracy of the information.
Official resources
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-08T14:16:59.493Z and has not been modified since then. The NVD entry is currently Deferred.