{"id":"CVE-2026-47724","revision":"7aeb58f7cc444773b66dbefb3549b2ce","records":[{"revision":"7aeb58f7cc444773b66dbefb3549b2ce","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-47724","aliases":[],"title":"nebula-mesh: API endpoints lack ownership checks, enabling cross-operator privilege escalation","description":"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 the worst case. Version 0.3.4 fixes the issue.","state":0,"publishedAt":"2026-07-23T20:20:59.494+00:00","modifiedAt":"2026-07-28T14:55:31.612+00:00","affected":[{"ecosystem":"Vendor product","name":"nebula-mesh","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"juev\",\n                    \"product\": \"nebula-mesh\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 0.3.4\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","score":9.9,"severity":"CRITICAL"}],"references":["https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-598g-h2vc-h5vg","https://github.com/forgekeep/nebula-mesh/commit/9d8bcd7667ecd0c2975cc71fb35a02fe131f76f2"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-47724","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-47724","identifiers":["CVE-2026-47724"]},"retained":false,"historicalAffected":[]}],"coverage":[]}