CVE-2026-40173
Dgraph: Unauthenticated pprof endpoint leaks admin auth token
Description
Dgraph is an open source distributed GraphQL database. Versions 25.3.1 and prior contain an unauthenticated credential disclosure vulnerability where the /debug/pprof/cmdline endpoint is registered on the default mux and reachable without authentication, exposing the full process command line including the admin token configured via the --security "token=..." startup flag. An attacker can retrieve the leaked token and reuse it in the X-Dgraph-AuthToken header to gain unauthorized access to admin-only endpoints such as /admin/config/cache_mb, bypassing the adminAuthHandler token validation. This enables unauthorized privileged administrative access including configuration changes and operational control actions in any deployment where the Alpha HTTP port is reachable by untrusted parties. This issue has been fixed in version 25.3.2.
INFO
Published Date :
April 15, 2026, 9:17 p.m.
Last Modified :
April 25, 2026, 6:27 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | [email protected] |
Solution
- Upgrade Dgraph to version 25.3.2 or later.
- Restrict access to the Alpha HTTP port.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-40173.
| URL | Resource |
|---|---|
| https://github.com/dgraph-io/dgraph/releases/tag/v25.3.2 | Release Notes |
| https://github.com/dgraph-io/dgraph/security/advisories/GHSA-95mq-xwj4-r47p | Exploit Vendor Advisory |
| https://github.com/dgraph-io/dgraph/security/advisories/GHSA-95mq-xwj4-r47p | Exploit Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-40173 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-40173
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-40173 vulnerability anywhere in the article.
-
Daily CyberSecurity
Dgraph’s Debug Endpoint Hands Over Admin Tokens to Anyone
Dgraph, the horizontally scalable and distributed GraphQL database known for its ACID transactions and graph-backend performance, is facing a significant security challenge. A recently disclosed criti ... Read more
The following table lists the changes that have been made to the
CVE-2026-40173 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Apr. 25, 2026
Action Type Old Value New Value Added CWE CWE-522 Added CPE Configuration OR *cpe:2.3:a:dgraph:dgraph:*:*:*:*:*:go:*:* versions up to (excluding) 25.3.2 Added Reference Type GitHub, Inc.: https://github.com/dgraph-io/dgraph/releases/tag/v25.3.2 Types: Release Notes Added Reference Type CISA-ADP: https://github.com/dgraph-io/dgraph/security/advisories/GHSA-95mq-xwj4-r47p Types: Exploit, Vendor Advisory Added Reference Type GitHub, Inc.: https://github.com/dgraph-io/dgraph/security/advisories/GHSA-95mq-xwj4-r47p Types: Exploit, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Apr. 16, 2026
Action Type Old Value New Value Added Reference https://github.com/dgraph-io/dgraph/security/advisories/GHSA-95mq-xwj4-r47p -
New CVE Received by [email protected]
Apr. 15, 2026
Action Type Old Value New Value Added Description Dgraph is an open source distributed GraphQL database. Versions 25.3.1 and prior contain an unauthenticated credential disclosure vulnerability where the /debug/pprof/cmdline endpoint is registered on the default mux and reachable without authentication, exposing the full process command line including the admin token configured via the --security "token=..." startup flag. An attacker can retrieve the leaked token and reuse it in the X-Dgraph-AuthToken header to gain unauthorized access to admin-only endpoints such as /admin/config/cache_mb, bypassing the adminAuthHandler token validation. This enables unauthorized privileged administrative access including configuration changes and operational control actions in any deployment where the Alpha HTTP port is reachable by untrusted parties. This issue has been fixed in version 25.3.2. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L Added CWE CWE-200 Added CWE CWE-215 Added Reference https://github.com/dgraph-io/dgraph/releases/tag/v25.3.2 Added Reference https://github.com/dgraph-io/dgraph/security/advisories/GHSA-95mq-xwj4-r47p