{"id":"CVE-2026-48058","summary":"nebula-mesh: Session and OIDC state cookies lack the Secure attribute","details":"nebula-mesh is a self-hosted control plane for Slack Nebula mesh virtual private network. Prior to version 0.3.2, internal/web/session.go and internal/web/oidc.go set HttpOnly and SameSite=Lax on every cookie but never Secure. A single plaintext request to the origin (operator on a LAN, mistyped URL, HTTP→HTTPS not strictly enforced, reverse proxy misconfiguration) discloses the session. This issue has been patched in version 0.3.2.","aliases":["GHSA-rqfj-vv8r-xhqc","GO-2026-5635"],"modified":"2026-08-12T03:51:26.564345982Z","published":"2026-07-28T18:47:57.916Z","related":["openSUSE-SU-2026:21483-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48058.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-614"]},"references":[{"type":"WEB","url":"https://github.com/forgekeep/nebula-mesh/releases/tag/v0.3.2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48058.json"},{"type":"ADVISORY","url":"https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-rqfj-vv8r-xhqc"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48058"},{"type":"FIX","url":"https://github.com/forgekeep/nebula-mesh/commit/ffdd67dbf221d9a5855c39fbe11b49c245048d85"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/forgekeep/nebula-mesh","events":[{"introduced":"0"},{"fixed":"ffdd67dbf221d9a5855c39fbe11b49c245048d85"},{"fixed":"bda2703821e2f5368a5896ce98b63da924953956"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"0.3.2"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["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-2026-48058.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U"}]}