{"id":"CVE-2026-41492","state":"PUBLISHED","title":"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.","publishedAt":"2026-04-24T18:29:40.555Z","updatedAt":"2026-04-24T19:13:03.267Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["dgraph-io dgraph"],"affected":[{"vendor":"dgraph-io","product":"dgraph","versions":[{"version":"< 25.3.3","status":"affected"}]}],"references":["https://github.com/dgraph-io/dgraph/security/advisories/GHSA-vvf7-6rmr-m29q","https://github.com/dgraph-io/dgraph/releases/tag/v25.3.3"],"weaknesses":["CWE-200"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/41xxx/CVE-2026-41492.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-41492","state":"PUBLISHED","datePublished":"2026-04-24T18:29:40.555Z","dateUpdated":"2026-04-24T19:13:03.267Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-04-20T16:14:19.008Z"},"containers":{"cna":{"title":"Unauthenticated Admin Token Disclosure Leading to Authentication Bypass via /debug/vars in Dgraph","descriptions":[{"lang":"en","value":"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":[{"vendor":"dgraph-io","product":"dgraph","versions":[{"version":"< 25.3.3","status":"affected"}]}],"references":[{"url":"https://github.com/dgraph-io/dgraph/security/advisories/GHSA-vvf7-6rmr-m29q","name":"https://github.com/dgraph-io/dgraph/security/advisories/GHSA-vvf7-6rmr-m29q","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/dgraph-io/dgraph/releases/tag/v25.3.3","name":"https://github.com/dgraph-io/dgraph/releases/tag/v25.3.3","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-200","lang":"en","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-04-24T18:29:40.555Z"},"source":{"advisory":"GHSA-vvf7-6rmr-m29q","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/dgraph-io/dgraph/security/advisories/GHSA-vvf7-6rmr-m29q","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-24T19:12:18.464706Z","id":"CVE-2026-41492","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-24T19:13:03.267Z"}}]}}}