UBUNTU-CVE-2026-83603

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Source
https://ubuntu.com/security/CVE-2026-83603
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-83603.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-83603
Upstream
Published
2026-09-22T17:17:00Z
Modified
2026-09-24T02:01:05Z
Severity
  • 8.4 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Netdata is an open source observability tool. Prior to 2.10.4, the setuid-root ndsudo helper command fail2ban-client-status-socket in src/collectors/utils/ndsudo.c accepts a caller-controlled --socket_path from the low-privileged netdata service account. The account can direct root fail2ban-client to a malicious UNIX socket, and fail2ban/client/csocket.py CSocket.receive() passes the returned data to pickle.loads(), allowing attacker-controlled code to execute as root on systems with fail2ban-client installed. This issue is fixed in version 2.10.4 and nightly build 2.10.0-782-nightly.

References

Affected packages

Ubuntu:Pro:18.04:LTS / netdata

Package

Name
netdata
Purl
pkg:deb/ubuntu/netdata?arch=source&distro=esm-apps%2Fbionic

Affected ranges

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

Affected versions

1.*
1.7.0+dfsg-1
1.8.0+dfsg-1
1.9.0+dfsg-1
1.9.0+dfsg-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "netdata",
            "binary_version":  "1.9.0+dfsg-1ubuntu0.1~esm1"
        },
        {
            "binary_name":  "netdata-data",
            "binary_version":  "1.9.0+dfsg-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-83603.json"

Ubuntu:Pro:20.04:LTS / netdata

Package

Name
netdata
Purl
pkg:deb/ubuntu/netdata?arch=source&distro=esm-apps%2Ffocal

Affected ranges

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

Affected versions

1.*
1.16.1-2
1.19.0-3ubuntu1
1.19.0-3ubuntu1+esm1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "netdata",
            "binary_version":  "1.19.0-3ubuntu1+esm1"
        },
        {
            "binary_name":  "netdata-apache2",
            "binary_version":  "1.19.0-3ubuntu1+esm1"
        },
        {
            "binary_name":  "netdata-core",
            "binary_version":  "1.19.0-3ubuntu1+esm1"
        },
        {
            "binary_name":  "netdata-plugins-bash",
            "binary_version":  "1.19.0-3ubuntu1+esm1"
        },
        {
            "binary_name":  "netdata-plugins-nodejs",
            "binary_version":  "1.19.0-3ubuntu1+esm1"
        },
        {
            "binary_name":  "netdata-plugins-python",
            "binary_version":  "1.19.0-3ubuntu1+esm1"
        },
        {
            "binary_name":  "netdata-web",
            "binary_version":  "1.19.0-3ubuntu1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-83603.json"

Ubuntu:Pro:22.04:LTS / netdata

Package

Name
netdata
Purl
pkg:deb/ubuntu/netdata?arch=source&distro=esm-apps%2Fjammy

Affected ranges

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

Affected versions

1.*
1.29.3-4
1.31.0-4
1.33.1-1ubuntu1
1.33.1-1ubuntu1+esm1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "netdata",
            "binary_version":  "1.33.1-1ubuntu1+esm1"
        },
        {
            "binary_name":  "netdata-apache2",
            "binary_version":  "1.33.1-1ubuntu1+esm1"
        },
        {
            "binary_name":  "netdata-core",
            "binary_version":  "1.33.1-1ubuntu1+esm1"
        },
        {
            "binary_name":  "netdata-plugins-bash",
            "binary_version":  "1.33.1-1ubuntu1+esm1"
        },
        {
            "binary_name":  "netdata-plugins-nodejs",
            "binary_version":  "1.33.1-1ubuntu1+esm1"
        },
        {
            "binary_name":  "netdata-plugins-python",
            "binary_version":  "1.33.1-1ubuntu1+esm1"
        },
        {
            "binary_name":  "netdata-web",
            "binary_version":  "1.33.1-1ubuntu1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-83603.json"

Ubuntu:24.04:LTS / netdata

Package

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

Affected ranges

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

Affected versions

1.*
1.42.1-1
1.43.1-1
1.43.2-1
1.43.2-1build1
1.43.2-1build2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "netdata",
            "binary_version":  "1.43.2-1build2"
        },
        {
            "binary_name":  "netdata-apache2",
            "binary_version":  "1.43.2-1build2"
        },
        {
            "binary_name":  "netdata-core",
            "binary_version":  "1.43.2-1build2"
        },
        {
            "binary_name":  "netdata-plugins-bash",
            "binary_version":  "1.43.2-1build2"
        },
        {
            "binary_name":  "netdata-plugins-python",
            "binary_version":  "1.43.2-1build2"
        },
        {
            "binary_name":  "netdata-web",
            "binary_version":  "1.43.2-1build2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-83603.json"