{"id":"CVE-2026-47722","summary":"nebula-mesh: Host advanced overrides allow YAML injection into agent config.yml","details":"nebula-mesh is a self-hosted control plane for Slack Nebula mesh virtual private network. Prior to version 0.3.2, `internal/configgen/generator.go:86,108,119` interpolates the operator-supplied `ListenHost` and `TunDevice` fields raw into a `text/template` that produces the agent's `config.yml`. `internal/web/advanced.go:20-35` accepts both with only `strings.TrimSpace` — no character or shape validation. Version 0.3.2 fixes the issue.","aliases":["GHSA-7hp6-g3pq-3pc3","GO-2026-5223"],"modified":"2026-07-31T18:30:19.232532603Z","published":"2026-07-23T19:19:41.976Z","related":["openSUSE-SU-2026:21483-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47722.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-94"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47722.json"},{"type":"ADVISORY","url":"https://github.com/forgekeep/nebula-mesh/security/advisories/GHSA-7hp6-g3pq-3pc3"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-47722"},{"type":"REPORT","url":"https://github.com/forgekeep/nebula-mesh/issues/126"},{"type":"FIX","url":"https://github.com/forgekeep/nebula-mesh/commit/c1506f7344ab375a145a7449b193af3f19bb41ef"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/forgekeep/nebula-mesh","events":[{"introduced":"0"},{"fixed":"c1506f7344ab375a145a7449b193af3f19bb41ef"}],"database_specific":{"source":["AFFECTED_FIELD","REFERENCES"],"extracted_events":[{"introduced":"0"},{"fixed":"0.3.2"}]}}],"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-2026-47722.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}]}