CVE-2026-41492
Unauthenticated Admin Token Disclosure Leading to Authentication Bypass via /debug/vars in Dgraph
At a glance
- Source
- NVD
- EPSS
- EPSS 3.08 % · percentile 88 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- GitHub_M
- NVD status
- Analyzed
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.
Weaknesses (CWE)
- CWE-200 — Exposure of Sensitive Information to an Unauthorized Actor
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | GitHub_M |
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · security-advisories@github.com (Secondary) |
Advisories
- 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
European references
- ENISA EUVD · EUVD-2026-25599
- GCVE · GCVE-0-2026-41492
Affected configurations (NVD CPE)
cpe:2.3:a:dgraph:dgraph:*:*:*:*:*:go:*:*< 25.3.3
Affected products
| Product | Versions |
|---|---|
| dgraph-io · dgraph | affected < 25.3.3 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |