Critical severity · published Aug 19, 2026
CVE-2026-47187
SSHFS Symlink Escape: Rogue SFTP Server → Local File Read/Write
9.3
CVSS
0.5%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 42% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SS
sshfs · libfuse
< 3.7.6 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-47187
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-47187
github.com
https://github.com/libfuse/sshfs/commit/bcd132f17ccf1b8592a229df797c9b08883fec26
github.com
https://github.com/libfuse/sshfs/pull/361
github.com
https://github.com/libfuse/sshfs/releases/tag/sshfs-3.7.6
github.com
https://github.com/libfuse/sshfs/security/advisories/GHSA-pjv6-2c3f-r357
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