CVE-2026-41492
Full vulnerability record from the local CVENow database.
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.
Severity
CRITICAL
CVSS score
9.8
(v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-04-24 19:17:14.047000
Last modified
2026-10-25 23:10:00.167000
View original CVE JSON
{
"id": "CVE-2026-41492",
"sourceIdentifier": "[email protected]",
"published": "2026-04-24T19:17:14.047",
"lastModified": "2026-10-25T23:10:00.167",
"vulnStatus": "Analyzed",
"cveTags": [],
"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."
},
{
"lang": "es",
"value": "Dgraph es una base de datos GraphQL distribuida de código abierto. Antes de la versión 25.3.3, Dgraph expone la línea de comandos del proceso a través del endpoint /debug/vars no autenticado en Alpha. Dado que el token de administrador se suele suministrar a través del flag de inicio --security ’token=...’, un atacante no autenticado puede recuperar ese token y reutilizarlo en el encabezado X-Dgraph-AuthToken para acceder a endpoints solo para administradores. Esta es una variante del problema /debug/pprof/cmdline previamente corregido, pero la solución actual es incompleta porque solo bloquea /debug/pprof/cmdline y aún sirve http.DefaultServeMux, que incluye el gestor /debug/vars de expvar. Esta vulnerabilidad se corrige en la versión 25.3.3."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "dgraph-io",
"product": "dgraph",
"versions": [
{
"version": "< 25.3.3",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2026-04-24T19:12:18.464706Z",
"id": "CVE-2026-41492",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-200"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
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"criteria": "cpe:2.3:a:dgraph:dgraph:*:*:*:*:*:go:*:*",
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"matchCriteriaId": "03E6E13D-4051-49C6-BDFB-3B66E2002401"
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"references": [
{
"url": "https://github.com/dgraph-io/dgraph/releases/tag/v25.3.3",
"source": "[email protected]",
"tags": [
"Release Notes"
]
},
{
"url": "https://github.com/dgraph-io/dgraph/security/advisories/GHSA-vvf7-6rmr-m29q",
"source": "[email protected]",
"tags": [
"Exploit",
"Vendor Advisory"
]
},
{
"url": "https://github.com/dgraph-io/dgraph/security/advisories/GHSA-vvf7-6rmr-m29q",
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}