USN-8938-1

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/notices/USN-8938-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8938-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-8938-1
Upstream
Related
Published
2026-10-19T13:56:50Z
Modified
2026-10-19T23:43:22Z
Summary
cifs-utils vulnerability
Details

It was discovered that cifs-utils incorrectly handled credentials files used by privileged mount.cifs invocations. A local attacker could possibly use this issue to inject arbitrary mount options into a privileged mount, resulting in a privilege escalation.

References

Affected packages

Ubuntu:22.04:LTS / cifs-utils

Package

Name
cifs-utils
Purl
pkg:deb/ubuntu/cifs-utils?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:6.14-1ubuntu0.7

Affected versions

2:6.*
2:6.11-3.1
2:6.14-1
2:6.14-1build1
2:6.14-1ubuntu0.1
2:6.14-1ubuntu0.2
2:6.14-1ubuntu0.3
2:6.14-1ubuntu0.4
2:6.14-1ubuntu0.5
2:6.14-1ubuntu0.6

Ecosystem specific 

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "cifs-utils",
            "binary_version":  "2:6.14-1ubuntu0.7"
        }
    ]
}

Database specific

cves_map 
{
    "cves":  [
        {
            "id":  "CVE-2026-104715",
            "severity":  [
                {
                    "score":  "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "medium",
                    "type":  "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem":  "Ubuntu:22.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8938-1.json"

Ubuntu:24.04:LTS / cifs-utils

Package

Name
cifs-utils
Purl
pkg:deb/ubuntu/cifs-utils?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:7.0-2ubuntu0.6

Affected versions

2:7.*
2:7.0-2
2:7.0-2build1
2:7.0-2ubuntu0.1
2:7.0-2ubuntu0.2
2:7.0-2ubuntu0.3
2:7.0-2ubuntu0.4
2:7.0-2ubuntu0.5

Ecosystem specific 

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "cifs-utils",
            "binary_version":  "2:7.0-2ubuntu0.6"
        }
    ]
}

Database specific

cves_map 
{
    "cves":  [
        {
            "id":  "CVE-2026-104715",
            "severity":  [
                {
                    "score":  "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "medium",
                    "type":  "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem":  "Ubuntu:24.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8938-1.json"

Ubuntu:26.10 / cifs-utils

Package

Name
cifs-utils
Purl
pkg:deb/ubuntu/cifs-utils?arch=source&distro=stonking

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:7.4-1ubuntu3.1

Affected versions

2:7.*
2:7.4-1build1
2:7.4-1ubuntu3

Ecosystem specific 

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "cifs-utils",
            "binary_version":  "2:7.4-1ubuntu3.1"
        }
    ]
}

Database specific

cves_map 
{
    "cves":  [
        {
            "id":  "CVE-2026-104715",
            "severity":  [
                {
                    "score":  "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "medium",
                    "type":  "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem":  "Ubuntu:26.10"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8938-1.json"

Ubuntu:26.04:LTS / cifs-utils

Package

Name
cifs-utils
Purl
pkg:deb/ubuntu/cifs-utils?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2:7.4-1ubuntu0.26.04.4

Affected versions

2:7.*
2:7.4-1
2:7.4-1build1
2:7.4-1ubuntu0.26.04.1
2:7.4-1ubuntu0.26.04.2
2:7.4-1ubuntu0.26.04.3

Ecosystem specific 

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "cifs-utils",
            "binary_version":  "2:7.4-1ubuntu0.26.04.4"
        }
    ]
}

Database specific

cves_map 
{
    "cves":  [
        {
            "id":  "CVE-2026-104715",
            "severity":  [
                {
                    "score":  "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "medium",
                    "type":  "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem":  "Ubuntu:26.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8938-1.json"