UBUNTU-CVE-2026-48711

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Source
https://ubuntu.com/security/CVE-2026-48711
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48711.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-48711
Upstream
Published
2026-08-19T15:17:00Z
Modified
2026-09-02T19:36:24Z
Severity
  • 7.0 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

SSHFS is a network filesystem client for connecting to SSH servers. From version 1.4 until 3.7.6, SSHFS accepts a bracketed mount source such as [-oProxyCommand=CMD]:/path and find_base_path() removes the brackets, leaving a host value that begins with - and is passed directly to ssh as a command-line argument. When a caller also supplies a path-valued sftp_server, ssh treats the normalized host as an option and the server path as its destination, causing an injected ProxyCommand to execute locally before any connection or authentication succeeds. The attack requires a caller or wrapper that passes an attacker-controlled mount source to SSHFS with the required sftp_server configuration and results in arbitrary command execution as the user running SSHFS. 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-2026-48711.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-2026-48711.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-2026-48711.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-2026-48711.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-2026-48711.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-2026-48711.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-2026-48711.json"