UBUNTU-CVE-2026-47187

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Source
https://ubuntu.com/security/CVE-2026-47187
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47187.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-47187
Upstream
Published
2026-08-19T15:17:00Z
Modified
2026-09-02T19:35:47Z
Severity
  • 9.3 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
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.

References

Affected packages

Ubuntu:16.04:LTS
sshfs-fuse

Package

Name
sshfs-fuse
Purl
pkg:deb/ubuntu/sshfs-fuse?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.5-1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "sshfs",
            "binary_version": "2.5-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47187.json"
Ubuntu:18.04:LTS
sshfs-fuse

Package

Name
sshfs-fuse
Purl
pkg:deb/ubuntu/sshfs-fuse?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.8-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "sshfs",
            "binary_version": "2.8-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47187.json"
Ubuntu:20.04:LTS
sshfs-fuse

Package

Name
sshfs-fuse
Purl
pkg:deb/ubuntu/sshfs-fuse?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.10+repack-2
3.*
3.6.0+repack-1
3.6.0+repack+really2.10-0ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "sshfs",
            "binary_version": "3.6.0+repack+really2.10-0ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47187.json"
Ubuntu:22.04:LTS
sshfs-fuse

Package

Name
sshfs-fuse
Purl
pkg:deb/ubuntu/sshfs-fuse?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.6.0+repack+really2.10-0ubuntu1
3.7.1+repack-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "sshfs",
            "binary_version": "3.7.1+repack-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47187.json"
Ubuntu:24.04:LTS
sshfs-fuse

Package

Name
sshfs-fuse
Purl
pkg:deb/ubuntu/sshfs-fuse?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.7.3-1.1build1
3.7.3-1.1build2
3.7.3-1.1build3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "sshfs",
            "binary_version": "3.7.3-1.1build3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47187.json"
Ubuntu:25.10
sshfs-fuse

Package

Name
sshfs-fuse
Purl
pkg:deb/ubuntu/sshfs-fuse?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.7.3-1.1build3
3.7.3-1.1build4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "sshfs",
            "binary_version": "3.7.3-1.1build4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47187.json"
Ubuntu:26.04:LTS
sshfs-fuse

Package

Name
sshfs-fuse
Purl
pkg:deb/ubuntu/sshfs-fuse?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.7.3-1.1build4
3.7.3-1.1build5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "sshfs",
            "binary_version": "3.7.3-1.1build5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-47187.json"