{"id":"DEBIAN-CVE-2026-47187","details":"SSHFS is a network filesystem client for connecting to SSH servers. Prior to version 3.7.6, a rogue SFTP server can return absolute symlink targets or relative targets containing parent-directory components that SSHFS passes through FUSE for resolution by the client kernel against the local filesystem. The documented transform_symlinks mitigation does not contain relative targets because transform_symlink() returns early at sshfs.c:2181, while sshfs_readlink() at sshfs.c:2234 to sshfs.c:2236 otherwise copies the server-supplied link target to the kernel. A victim or victim-side tool that follows such a link through ordinary operations such as cp, rsync, backup tooling, or an editor can disclose readable local files back to the server or write server-controlled content to writable local files, potentially including startup or scheduled-task files. This issue is fixed in version 3.7.6.","modified":"2026-09-10T08:47:26.658256038Z","published":"2026-08-19T15:17:05.310Z","upstream":["CVE-2026-47187"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-47187"}],"affected":[{"package":{"name":"sshfs-fuse","ecosystem":"Debian:12","purl":"pkg:deb/debian/sshfs-fuse?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.7.3-1.2~deb12u1"}]}],"versions":["3.7.3-1.1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-47187.json"}},{"package":{"name":"sshfs-fuse","ecosystem":"Debian:13","purl":"pkg:deb/debian/sshfs-fuse?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.7.3-1.2~deb13u1"}]}],"versions":["3.7.3-1.1","3.7.3-1.2~deb12u1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-47187.json"}},{"package":{"name":"sshfs-fuse","ecosystem":"Debian:14","purl":"pkg:deb/debian/sshfs-fuse?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.7.3-1.2"}]}],"versions":["3.7.3-1.1","3.7.3-1.2~deb12u1","3.7.3-1.2~deb13u1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-47187.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N"}]}