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.

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-mrxx-39g5-ph77 Dgraph: Pre-Auth Full Database Exfiltration via DQL Injection in Upsert Condition Field
Fixes

Solution

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Workaround

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History

Fri, 24 Apr 2026 19:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Dgraph: Pre-Auth Full Database Exfiltration via DQL Injection in Upsert Condition Field
Weaknesses CWE-943
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-04-24T19:05:56.125Z

Reserved: 2026-04-20T14:01:46.672Z

Link: CVE-2026-41327

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-24T19:17:12.407

Modified: 2026-04-24T19:17:12.407

Link: CVE-2026-41327

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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Weaknesses