Provide references for CVE-2021-21404.
Where can I find more information about CVE-2021-21404?
References are available at: https://github.com/syncthing/syncthing/security/advisories/GHSA-x462-89pf-6r5h, https://pkg.go.dev/github.com/syncthing/syncthing, https://github.com/syncthing/syncthing/commit/fb4fdaf4c0a79c22cad000c42ac1394e3ccb6a97, https://github.com/syncthing/syncthing/releases/tag/v1.15.0.