CVE-2026-41492— Unauthenticated Admin Token Disclosure Leading to Authentication Bypass via /debug/vars in Dgraph
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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: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
信息暴露
Source: NVD (National Vulnerability Database)
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
II. Public POCs for CVE-2026-41492
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- Release v25.3.3 · dgraph-io/dgraph · GitHubx_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2026-41492
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
- CVE-2026-41327
Dgraph: Pre-Auth Full Database Exfiltration via DQL Injectio - CVE-2026-41328
Dgraph: Pre-Auth Full Database Exfiltration via DQL Injectio - CVE-2026-40173
Dgraph: Unauthenticated pprof endpoint leaks admin auth toke - CVE-2026-34976
Dgraph Affected by Pre-Auth Database Overwrite + SSRF + File - CVE-2023-31135
Dgraph Audit Log Encryption nonce reuse
Same vendor: dgraph-io
- CVE-2026-41327
Dgraph: Pre-Auth Full Database Exfiltration via DQL Injectio - CVE-2026-41328
Dgraph: Pre-Auth Full Database Exfiltration via DQL Injectio - CVE-2026-40173
Dgraph: Unauthenticated pprof endpoint leaks admin auth toke - CVE-2026-34976
Dgraph Affected by Pre-Auth Database Overwrite + SSRF + File - CVE-2023-31135
Dgraph Audit Log Encryption nonce reuse
Same weakness: CWE-200
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quarkus-openapi-generator has overly broad path-parameter ma - CVE-2026-8198
Activity Logs, User Activity Tracking, Multisite Activity Lo - CVE-2026-42456
AnythingLLM: Cross-User TTS Audio Disclosure via Chat ID (ID - CVE-2026-41520
Cillium exposes sensitive information included in the cilium - CVE-2026-25199
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