{"id":"CVE-2026-49258","revision":"dddaca5946774fb8a577c2cf8291ff0a","records":[{"revision":"dddaca5946774fb8a577c2cf8291ff0a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-49258","aliases":[],"title":"Nebula Mesh: Web UI lacks ownership checks, enabling cross-operator access to hosts and networks (read, block, delete)","description":"Nebula Mesh is a self-hosted control plane for the Slack Nebula mesh VPN. In versions 0.3.5 and below, the web UI (/ui/*) does not apply the per-operator CA scoping employed by the JSON API. This was partially addressed by GHSA-598g-h2vc-h5vg, but the changes were not implemented in the web read/mutation surface. Any authenticated non-admin operator (for example, one created via self-registration or OIDC) can access resources belonging to other operators. The host create/edit/mobile-bundle/network-create paths and all CA-management routes were already correctly scoped. A malicious operator could block or delete any other operator's host, or read any operator's hosts and networks. This issue has been fixed in version 0.3.6.","state":0,"publishedAt":"2026-07-28T18:52:58.713+00:00","modifiedAt":"2026-07-28T19:21:43.453+00:00","affected":[{"ecosystem":"Vendor product","name":"nebula-mesh","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"juev\",\n                    \"product\": \"nebula-mesh\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 0.3.6\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-c6v2-3ffm-vcmc","https://github.com/forgekeep/nebula-mesh/pull/161"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-49258","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-49258","identifiers":["CVE-2026-49258"]},"retained":false,"historicalAffected":[]}],"coverage":[]}