Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Dgraph | Dgraph | < 25.3.2 |
Related Weaknesses (CWE)
References
- https://github.com/dgraph-io/dgraph/releases/tag/v25.3.2Release Notes
- https://github.com/dgraph-io/dgraph/security/advisories/GHSA-95mq-xwj4-r47pExploitVendor Advisory
- https://github.com/dgraph-io/dgraph/security/advisories/GHSA-95mq-xwj4-r47pExploitVendor Advisory
FAQ
What is CVE-2026-40173?
CVE-2026-40173 is a vulnerability with a CVSS score of 9.4 (CRITICAL). 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...
How severe is CVE-2026-40173?
CVE-2026-40173 has been rated CRITICAL with a CVSS base score of 9.4/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-40173?
Check the references section above for vendor advisories and patch information. Affected products include: Dgraph Dgraph.