CVE-2026-41492 is a critical-severity security vulnerability in github.com/dgraph-io/dgraph/v25 (go), affecting versions < 25.3.3. It is fixed in 25.3.3.
Summary Dgraph v25.3.2 still 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. Details Alpha still exposes Go's default HTTP mux: x/metrics.go imports expvar initializes Conf = expvar.NewMap("dgraphconfig") Go's expvar package automatically registers /debug/vars expvar publishes: cmdline = os.Args memstats = runtime.Memstats Alpha's HTTP handler explicitly blocks only the old CVE path: dgraph/cmd/alpha/run.go checks if r.URL.Path == "/debug/pprof/cmdline" and returns 404 otherwise falls through to http.DefaultServeMux.ServeHTTP(w, r) Admin endpoints still trust the leaked token: dgraph/cmd/alpha/admin.go reads X-Dgraph-AuthToken compares it to worker.Config.AuthToken PoC Send an unauthenticated request to Alpha: Parse the JSON response and read the cmdline field. Extract the admin token from the startup arguments, for example: Replay the token to an admin-only endpoint: The request is accepted as an authorized admin request. This was reproduced against dgraph/dgraph:v25.3.2 in Docker. Observed behavior: unauthenticated /debug/vars leaked the configured token replaying the leaked token in X-Dgraph-AuthToken successfully accessed /admin/config/cachemb response body was: It was verified that the old CVE path appears specifically patched in the same version: /debug/pprof/cmdline returned 404 Not Found /debug/pprof/ remained reachable Impact Unauthenticated attackers can obtain the Alpha admin token and gain unauthorized administrative access. This enables privileged admin operations such as: reading privileged admin configuration mutating admin configuration performing operational control actions gated by X-Dgraph-AuthToken In deployments where the Alpha HTTP port is reachable by untrusted parties, this is a practical authentication bypass to admin functionality.
CVE-2026-41492 has a CVSS score of 9.8 (Critical). The vector is network-reachable, no privileges required, and no user interaction. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment.
A fixed version is available (25.3.3). Upgrading removes the vulnerable code path.
go
github.com/dgraph-io/dgraph/v25 (< 25.3.3)github.com/dgraph-io/dgraph/v24 (<= 24.1.8)github.com/dgraph-io/dgraph (<= 1.2.8)github.com/dgraph-io/dgraph/v25 → 25.3.3 (go)Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.
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Already deployed Kodem? See CVE-2026-41492 in your environment →Upgrade github.com/dgraph-io/dgraph/v25 to 25.3.3 or later to resolve this vulnerability.
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CVE-2026-41492 is a critical-severity security vulnerability in github.com/dgraph-io/dgraph/v25 (go), affecting versions < 25.3.3. It is fixed in 25.3.3.
CVE-2026-41492 has a CVSS score of 9.8 (Critical). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
github.com/dgraph-io/dgraph/v25 (go) (versions < 25.3.3)github.com/dgraph-io/dgraph/v24 (go) (versions <= 24.1.8)github.com/dgraph-io/dgraph (go) (versions <= 1.2.8)Yes. CVE-2026-41492 is fixed in 25.3.3. Upgrade to this version or later.
Whether CVE-2026-41492 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
Upgrade github.com/dgraph-io/dgraph/v25 to 25.3.3 or later.