UBUNTU-CVE-2026-119742

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Source
https://ubuntu.com/security/CVE-2026-119742
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-119742.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-119742
Upstream
  • CVE-2026-119742
Published
2026-11-03T14:17:00Z
Modified
2026-11-05T11:47:26Z
Severity
  • 7.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • 8.6 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Nagios XI before 2026R2 contains an OS command injection vulnerability in the MIB upload feature where the install_mib() function in mibs.php sanitizes uploaded filenames with an incomplete character-substitution filter that omits semicolons, pipes, and non-space IFS whitespace characters before passing them to a grep command run via exec(). An authenticated administrator can upload a MIB file with a crafted filename using tab characters to bypass the deny-list and pipe to sh via a multipart POST request to mibs.php, resulting in arbitrary OS command execution as the web server user.

References

Affected packages

Ubuntu:16.04:LTS
nagios3

Package

Name
nagios3
Purl
pkg:deb/ubuntu/nagios3?arch=source&distro=xenial

Affected ranges

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

Affected versions

3.*
3.5.1-1ubuntu4
3.5.1.dfsg-2ubuntu1
3.5.1.dfsg-2ubuntu2
3.5.1.dfsg-2.1ubuntu1
3.5.1.dfsg-2.1ubuntu1.1
3.5.1.dfsg-2.1ubuntu1.2
3.5.1.dfsg-2.1ubuntu1.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "nagios3",
            "binary_version": "3.5.1.dfsg-2.1ubuntu1.3"
        },
        {
            "binary_name": "nagios3-cgi",
            "binary_version": "3.5.1.dfsg-2.1ubuntu1.3"
        },
        {
            "binary_name": "nagios3-common",
            "binary_version": "3.5.1.dfsg-2.1ubuntu1.3"
        },
        {
            "binary_name": "nagios3-core",
            "binary_version": "3.5.1.dfsg-2.1ubuntu1.3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-119742.json"
icinga

Package

Name
icinga
Purl
pkg:deb/ubuntu/icinga?arch=source&distro=xenial

Affected ranges

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

Affected versions

1.*
1.13.3-1
1.13.3-2
1.13.3-2ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "icinga",
            "binary_version": "1.13.3-2ubuntu0.1"
        },
        {
            "binary_name": "icinga-cgi",
            "binary_version": "1.13.3-2ubuntu0.1"
        },
        {
            "binary_name": "icinga-cgi-bin",
            "binary_version": "1.13.3-2ubuntu0.1"
        },
        {
            "binary_name": "icinga-common",
            "binary_version": "1.13.3-2ubuntu0.1"
        },
        {
            "binary_name": "icinga-core",
            "binary_version": "1.13.3-2ubuntu0.1"
        },
        {
            "binary_name": "icinga-idoutils",
            "binary_version": "1.13.3-2ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-119742.json"
Ubuntu:18.04:LTS
icinga

Package

Name
icinga
Purl
pkg:deb/ubuntu/icinga?arch=source&distro=bionic

Affected ranges

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

Affected versions

1.*
1.13.4-2build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "icinga",
            "binary_version": "1.13.4-2build1"
        },
        {
            "binary_name": "icinga-cgi",
            "binary_version": "1.13.4-2build1"
        },
        {
            "binary_name": "icinga-cgi-bin",
            "binary_version": "1.13.4-2build1"
        },
        {
            "binary_name": "icinga-common",
            "binary_version": "1.13.4-2build1"
        },
        {
            "binary_name": "icinga-core",
            "binary_version": "1.13.4-2build1"
        },
        {
            "binary_name": "icinga-idoutils",
            "binary_version": "1.13.4-2build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-119742.json"
nagios3

Package

Name
nagios3
Purl
pkg:deb/ubuntu/nagios3?arch=source&distro=bionic

Affected ranges

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

Affected versions

3.*
3.5.1.dfsg-2.1ubuntu8

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "nagios3",
            "binary_version": "3.5.1.dfsg-2.1ubuntu8"
        },
        {
            "binary_name": "nagios3-cgi",
            "binary_version": "3.5.1.dfsg-2.1ubuntu8"
        },
        {
            "binary_name": "nagios3-common",
            "binary_version": "3.5.1.dfsg-2.1ubuntu8"
        },
        {
            "binary_name": "nagios3-core",
            "binary_version": "3.5.1.dfsg-2.1ubuntu8"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-119742.json"
Ubuntu:20.04:LTS
nagios4

Package

Name
nagios4
Purl
pkg:deb/ubuntu/nagios4?arch=source&distro=focal

Affected ranges

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

Affected versions

4.*
4.3.4-3
4.3.4-3ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "nagios4",
            "binary_version": "4.3.4-3ubuntu0.1"
        },
        {
            "binary_name": "nagios4-cgi",
            "binary_version": "4.3.4-3ubuntu0.1"
        },
        {
            "binary_name": "nagios4-common",
            "binary_version": "4.3.4-3ubuntu0.1"
        },
        {
            "binary_name": "nagios4-core",
            "binary_version": "4.3.4-3ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-119742.json"
Ubuntu:22.04:LTS
nagios4

Package

Name
nagios4
Purl
pkg:deb/ubuntu/nagios4?arch=source&distro=jammy

Affected ranges

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

Affected versions

4.*
4.4.6-4
4.4.6-4ubuntu0.22.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "nagios4",
            "binary_version": "4.4.6-4ubuntu0.22.04.1"
        },
        {
            "binary_name": "nagios4-cgi",
            "binary_version": "4.4.6-4ubuntu0.22.04.1"
        },
        {
            "binary_name": "nagios4-common",
            "binary_version": "4.4.6-4ubuntu0.22.04.1"
        },
        {
            "binary_name": "nagios4-core",
            "binary_version": "4.4.6-4ubuntu0.22.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-119742.json"
Ubuntu:24.04:LTS
nagios4

Package

Name
nagios4
Purl
pkg:deb/ubuntu/nagios4?arch=source&distro=noble

Affected ranges

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

Affected versions

4.*
4.4.6-4
4.4.6-4ubuntu0.24.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "nagios4",
            "binary_version": "4.4.6-4ubuntu0.24.04.1"
        },
        {
            "binary_name": "nagios4-cgi",
            "binary_version": "4.4.6-4ubuntu0.24.04.1"
        },
        {
            "binary_name": "nagios4-common",
            "binary_version": "4.4.6-4ubuntu0.24.04.1"
        },
        {
            "binary_name": "nagios4-core",
            "binary_version": "4.4.6-4ubuntu0.24.04.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-119742.json"
Ubuntu:26.04:LTS
nagios4

Package

Name
nagios4
Purl
pkg:deb/ubuntu/nagios4?arch=source&distro=resolute

Affected ranges

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

Affected versions

4.*
4.4.6-4.1ubuntu1
4.4.6-4.1ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "nagios4",
            "binary_version": "4.4.6-4.1ubuntu2"
        },
        {
            "binary_name": "nagios4-cgi",
            "binary_version": "4.4.6-4.1ubuntu2"
        },
        {
            "binary_name": "nagios4-common",
            "binary_version": "4.4.6-4.1ubuntu2"
        },
        {
            "binary_name": "nagios4-core",
            "binary_version": "4.4.6-4.1ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-119742.json"
Ubuntu:26.10
nagios4

Package

Name
nagios4
Purl
pkg:deb/ubuntu/nagios4?arch=source&distro=stonking

Affected ranges

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

Affected versions

4.*
4.4.6-4.1ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "nagios4",
            "binary_version": "4.4.6-4.1ubuntu2"
        },
        {
            "binary_name": "nagios4-cgi",
            "binary_version": "4.4.6-4.1ubuntu2"
        },
        {
            "binary_name": "nagios4-common",
            "binary_version": "4.4.6-4.1ubuntu2"
        },
        {
            "binary_name": "nagios4-core",
            "binary_version": "4.4.6-4.1ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-119742.json"