Paper/Archive/CVE-2026-41492

CVE-2026-41492

dgraph-io dgraph — Unauthenticated Admin Token Disclosure Leading to Authentication Bypass via /debug/vars in Dgraph

CVSS 9.8 (CNA)9.8 / 10 × 3029.4 Not in CISA KEV+300.0 EPSS percentile 87.7.877 × 2017.5 Exploit: SSVC poc+1010.0 SSVC exploitation: poc+100.0

Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource

dgraph< 25.3.3–CNA

Scores by source

GitHub_M (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

exploitgithub.com/dgraph-io/dgraph/security/advisories/GHSA-vvf7-6rmr-m29q refgithub.com/dgraph-io/dgraph/releases/tag/v25.3.3