cvedb.io
CVE-2026-47724
CRITICAL · CVSS 9.9
EPSS exploitation probability: 0%
Published 2026-07-23T21:17:04.477 · Last modified 2026-07-23T21:17:04.477

Summary

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 — instant privilege escalation in th

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.