CVE-2026-41492

Unauthenticated Admin Token Disclosure Leading to Authentication Bypass via /debug/vars in Dgraph

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.

Scores

Faiblesses (CWE)

• CWE-200

Avis

• GHSA-vvf7-6rmr-m29q — Dgraph: Unauthenticated Admin Token Disclosure Leading to Authentication Bypass via /debug/vars
• GO-2026-5675 — Unauthenticated admin token disclosure via /debug/vars in github.com/dgraph-io/dgraph

Références européennes

• ENISA EUVD · EUVD-2026-25599
• GCVE · GCVE-0-2026-41492

Configurations affectées (CPE NVD)

• cpe:2.3:a:dgraph:dgraph:*:*:*:*:*:go:*:* < 25.3.3

Produits affectés

Références

• https://github.com/dgraph-io/dgraph/security/advisories/GHSA-vvf7-6rmr-m29q
• https://github.com/dgraph-io/dgraph/releases/tag/v25.3.3

Sources