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CVE-2026-41492— Unauthenticated Admin Token Disclosure Leading to Authentication Bypass via /debug/vars in Dgraph

Quick assessment

Affected
dgraph-io dgraph
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Dgraph是Dgraph开源的一个具有图形后端的水平可扩展分布式 GraphQL 数据库。 Dgraph 25.3.3之前版本存在信息泄露漏洞，该漏洞源于Dgraph通过未经验证的/debug/vars端点暴露进程命令行，允许未经身份验证的攻击者检索管理员令牌并通过X-Dgraph-AuthToken标头访问仅管理员端点。

CVSS 9.8 · Critical EPSS 2.46% · P84

Public Exploits 1

Nuclei · 1 CVE-2026-41492.yaml [template]
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I. Basic Information for CVE-2026-41492

Vulnerability Information
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Vulnerability Title
Unauthenticated Admin Token Disclosure Leading to Authentication Bypass via /debug/vars in Dgraph
Source: CVE Program / CVE List V5
Vulnerability Description
Dgraph is an open source distributed GraphQL database. Prior to 25.3.3, Dgraphl exposes the process command line through the unauthenticated /debug/vars endpoint on Alpha. Because the admin token is commonly supplied via the --security "token=..." startup flag, an unauthenticated attacker can retrieve that token and replay it in the X-Dgraph-AuthToken header to access admin-only endpoints. This is a variant of the previously fixed /debug/pprof/cmdline issue, but the current fix is incomplete because it blocks only /debug/pprof/cmdline and still serves http.DefaultServeMux, which includes expvar's /debug/vars handler. This vulnerability is fixed in 25.3.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Dgraph 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Dgraph是Dgraph开源的一个具有图形后端的水平可扩展分布式 GraphQL 数据库。 Dgraph 25.3.3之前版本存在信息泄露漏洞，该漏洞源于Dgraph通过未经验证的/debug/vars端点暴露进程命令行，允许未经身份验证的攻击者检索管理员令牌并通过X-Dgraph-AuthToken标头访问仅管理员端点。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
dgraph-io dgraph < 25.3.3 -

II. Public POCs for CVE-2026-41492

# POC Description Source Link Shenlong Link
1 Dgraph <= 25.3.2 contains an information disclosure caused by unauthenticated access to the /debug/vars endpoint , which publishes the cmdline variable including the --security token= flag, letting unauthenticated remote attackers retrieve the admin token and access admin-only endpoints, exploit requires no authentication. https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-41492.yaml POC Details
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III. Intelligence Information for CVE-2026-41492

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Vendor Advisories for CVE-2026-41492 (1)

Other References for CVE-2026-41492 (1)

Same Patch Batch · dgraph-io · 2026-04-24 · 3 CVEs total

CVE-2026-41328 9.1 CRITICAL Dgraph: Pre-Auth Full Database Exfiltration via DQL Injection in NQuad Lang Field
CVE-2026-41327 9.1 CRITICAL Dgraph: Pre-Auth Full Database Exfiltration via DQL Injection in Upsert Condition Field

IV. Related Vulnerabilities

Same product: dgraph
Same vendor: dgraph-io
Same weakness: CWE-200

V. Comments for CVE-2026-41492

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