CVE-2026-47724

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{"affected": [{"affectedData": [{"product": "nebula-mesh", "vendor": "juev", "versions": [{"status": "affected", "version": "< 0.3.4"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "nebula-mesh is a self-hosted control plane for Slack Nebula mesh virtual private network. Prior to version 0.3.4, the `/api/v1/*` route surface trusts the bearer token alone for authorisation on most endpoints. The codebase itself admits this at `internal/api/hosts.go:384`: \"API trusts the bearer token for authorisation; per-CA ownership is enforced only in the Web layer.\" The Web UI gates state-changing routes through `loadAccessibleCA` (`internal/web/cas.go`); CA-management endpoints in `internal/api/cas.go` ALSO have proper `canAccessCA` gates. The gap is on the host, network, firewall, mobile-bundle, and most operator endpoints. Combined with the per-operator CA model from ADR 0002, this gives any non-admin operator API key broad cross-tenant access \u2014 instant privilege escalation in the worst case. Version 0.3.4 fixes the issue."}, {"lang": "es", "value": "nebula-mesh es un plano de control autohospedado para la red privada virtual de malla Slack Nebula. Antes de la versi\u00f3n 0.3.4, la superficie de ruta \u2019/api/v1/*\u2019 conf\u00eda \u00fanicamente en el token de portador para la autorizaci\u00f3n en la mayor\u00eda de los puntos finales. El propio c\u00f3digo fuente admite esto en \u201cinternal/api/hosts.go:384\u201d: \u2019La API conf\u00eda en el token de portador para la autorizaci\u00f3n; la propiedad por CA se aplica solo en la capa web.\u2019 La interfaz de usuario web protege las rutas que cambian de estado a trav\u00e9s de \u201cloadAccessibleCA\u201d (\u201cinternal/web/cas.go\u201d); los puntos finales de gesti\u00f3n de CA en \u201cinternal/api/cas.go\u201d TAMBI\u00c9N tienen puertas \u201ccanAccessCA\u201d adecuadas. La brecha est\u00e1 en los puntos finales de host, red, cortafuegos, paquete m\u00f3vil y la mayor\u00eda de los operadores. Combinado con el modelo de CA por operador de ADR 0002, esto otorga a cualquier clave API de operador no administrador un amplio acceso entre inquilinos - escalada de privilegios instant\u00e1nea en el peor de los casos. La versi\u00f3n 0.3.4 soluciona el problema."}], "id": "CVE-2026-47724", "lastModified": "2026-10-24T13:10:00.147", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.9, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 6.0, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-47724", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-07-28T14:29:11.247252Z", "version": "2.0.3"}}]}, "published": "2026-07-23T21:17:04.477", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/forgekeep/nebula-mesh/commit/9d8bcd7667ecd0c2975cc71fb35a02fe131f76f2"}, {"source": "security-advisories@github.com", "url": "https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-598g-h2vc-h5vg"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-862"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.3.4)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "nebula-mesh", "source": "cna", "vendor": "juev"}, "product": "nebula-mesh", "vendor": "juev"}], "created": "2026-07-27T12:50:57.837525+00:00", "updated": "2026-08-03T21:00:12.569476+00:00", "vendors": ["juev", "juev$PRODUCT$nebula-mesh"]}