{"id":"CVE-2026-47725","summary":"nebula-mesh: Web UI lacks CSRF tokens on /ui/* mutating endpoints","details":"nebula-mesh is a self-hosted control plane for Slack Nebula mesh virtual private network. Prior to version 0.3.3, every /ui/* POST / PUT / PATCH / DELETE route processes the request as soon as the session cookie validates. SameSite=Lax on the session cookie prevents most cross-site form submits but does not protect: top-level form-submit navigations from third-party pages (some browsers still send Lax cookies on top-level POSTs); same-registrable-domain attackers (sibling-subdomain XSS, subdomain takeover); the GET /ui/logout route, which a third-party \u003cimg src=\".../ui/logout\"\u003e can force-trigger. This issue has been patched in version 0.3.3.","aliases":["GHSA-273q-qgh5-wrj6","GO-2026-5049"],"modified":"2026-07-29T11:30:15.018975290Z","published":"2026-07-28T17:56:29.651Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-352"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47725.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47725.json"},{"type":"WEB","url":"https://github.com/forgekeep/nebula-mesh/releases/tag/v0.3.3"},{"type":"ADVISORY","url":"https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-273q-qgh5-wrj6"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-47725"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/forgekeep/nebula-mesh","events":[{"introduced":"0"},{"fixed":"2b5ef312db15a2c62dad5a9997a827fa3b3d20c5"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"fixed":"0.3.3"}]}}],"versions":["v0.3.2","v0.3.1","v0.3.0","v0.2.0","v0.1.2","v0.1.1","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-47725.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"}]}