CVE-2026-41492 (GCVE-0-2026-41492)

Vulnerability from cvelistv5 – Published: 2026-04-24 18:29 – Updated: 2026-04-24 19:13
VLAI?
Title
Unauthenticated Admin Token Disclosure Leading to Authentication Bypass via /debug/vars in Dgraph
Summary
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.
Severity ?
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
Vendor Product Version
dgraph-io dgraph Affected: < 25.3.3
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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