dgraph-io dgraph up to 25.3.2 DQL Parser /mutate?commitNow=true cond data query logic injection

Summaryinfo

A vulnerability described as critical has been identified in dgraph-io dgraph up to 25.3.2. This affects an unknown function of the file /mutate?commitNow=true of the component DQL Parser. The manipulation of the argument cond results in data query logic injection. This vulnerability is reported as CVE-2026-41327. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in dgraph-io dgraph up to 25.3.2. Affected is an unknown code block of the file /mutate?commitNow=true of the component DQL Parser. The manipulation of the argument cond with an unknown input leads to a data query logic injection vulnerability. CWE is classifying the issue as CWE-943. The product generates a query intended to access or manipulate data in a data store such as a database, but it does not neutralize or incorrectly neutralizes special elements that can modify the intended logic of the query. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Dgraph is an open source distributed GraphQL database. Prior to 25.3.3, a vulnerability has been found in Dgraph that gives an unauthenticated attacker full read access to every piece of data in the database. This affects Dgraph's default configuration where ACL is not enabled. The attack is a single HTTP POST to /mutate?commitNow=true containing a crafted cond field in an upsert mutation. The cond value is concatenated directly into a DQL query string via strings.Builder.WriteString after only a cosmetic strings.Replace transformation. No escaping, parameterization, or structural validation is applied. An attacker injects an additional DQL query block into the cond string, which the DQL parser accepts as a syntactically valid named query block. The injected query executes server-side and its results are returned in the HTTP response. This vulnerability is fixed in 25.3.3.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-41327 since 04/20/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

Upgrading to version 25.3.3 eliminates this vulnerability.

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Productinfo

Vendor

• dgraph-io

Name

• dgraph

Version

• 25.3.0
• 25.3.1
• 25.3.2

Website

• Product: https://github.com/dgraph-io/dgraph/

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