UBUNTU-CVE-2026-16526

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Source
https://ubuntu.com/security/CVE-2026-16526
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16526.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-16526
Upstream
  • CVE-2026-16526
Published
2026-07-31T00:00:00Z
Modified
2026-07-31T14:38:07.390480101Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A flaw in the PCP linux_sockets module exposes an unsecured internal connection. An attacker with initial code execution can exploit this to escalate privileges and execute arbitrary commands as root.

References

Affected packages

Ubuntu:16.04:LTS
pcp

Package

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

Affected ranges

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

Affected versions

3.*
3.10.6
3.10.8
3.10.8build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libpcp-gui2",
            "binary_version": "3.10.8build1"
        },
        {
            "binary_name": "libpcp-import-perl",
            "binary_version": "3.10.8build1"
        },
        {
            "binary_name": "libpcp-import1",
            "binary_version": "3.10.8build1"
        },
        {
            "binary_name": "libpcp-logsummary-perl",
            "binary_version": "3.10.8build1"
        },
        {
            "binary_name": "libpcp-mmv-perl",
            "binary_version": "3.10.8build1"
        },
        {
            "binary_name": "libpcp-mmv1",
            "binary_version": "3.10.8build1"
        },
        {
            "binary_name": "libpcp-pmda-perl",
            "binary_version": "3.10.8build1"
        },
        {
            "binary_name": "libpcp-pmda3",
            "binary_version": "3.10.8build1"
        },
        {
            "binary_name": "libpcp-trace2",
            "binary_version": "3.10.8build1"
        },
        {
            "binary_name": "libpcp3",
            "binary_version": "3.10.8build1"
        },
        {
            "binary_name": "pcp",
            "binary_version": "3.10.8build1"
        },
        {
            "binary_name": "pcp-conf",
            "binary_version": "3.10.8build1"
        },
        {
            "binary_name": "pcp-gui",
            "binary_version": "3.10.8build1"
        },
        {
            "binary_name": "pcp-import-collectl2pcp",
            "binary_version": "3.10.8build1"
        },
        {
            "binary_name": "pcp-import-ganglia2pcp",
            "binary_version": "3.10.8build1"
        },
        {
            "binary_name": "pcp-import-iostat2pcp",
            "binary_version": "3.10.8build1"
        },
        {
            "binary_name": "pcp-import-mrtg2pcp",
            "binary_version": "3.10.8build1"
        },
        {
            "binary_name": "pcp-import-sar2pcp",
            "binary_version": "3.10.8build1"
        },
        {
            "binary_name": "pcp-import-sheet2pcp",
            "binary_version": "3.10.8build1"
        },
        {
            "binary_name": "pcp-manager",
            "binary_version": "3.10.8build1"
        },
        {
            "binary_name": "pcp-testsuite",
            "binary_version": "3.10.8build1"
        },
        {
            "binary_name": "python-pcp",
            "binary_version": "3.10.8build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16526.json"
Ubuntu:18.04:LTS
pcp

Package

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

Affected ranges

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

Affected versions

3.*
3.12.1
3.12.2-1
4.*
4.0.0-1
4.0.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libpcp-gui2",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "libpcp-import-perl",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "libpcp-import1",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "libpcp-logsummary-perl",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "libpcp-mmv-perl",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "libpcp-mmv1",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "libpcp-pmda-perl",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "libpcp-pmda3",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "libpcp-trace2",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "libpcp-web1",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "libpcp3",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "pcp",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "pcp-conf",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "pcp-export-pcp2graphite",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "pcp-export-pcp2influxdb",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "pcp-export-zabbix-agent",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "pcp-gui",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "pcp-import-collectl2pcp",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "pcp-import-ganglia2pcp",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "pcp-import-iostat2pcp",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "pcp-import-mrtg2pcp",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "pcp-import-sar2pcp",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "pcp-import-sheet2pcp",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "pcp-manager",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "pcp-testsuite",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "pcp-webapi",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "python-pcp",
            "binary_version": "4.0.1-1"
        },
        {
            "binary_name": "python3-pcp",
            "binary_version": "4.0.1-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16526.json"
Ubuntu:20.04:LTS
pcp

Package

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

Affected ranges

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

Affected versions

4.*
4.3.4-1build1
4.3.4-1build2
5.*
5.0.0-1
5.0.1-1
5.0.2-1.1
5.0.2-1.1build1
5.0.3-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libpcp-gui2",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "libpcp-import-perl",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "libpcp-import1",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "libpcp-logsummary-perl",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "libpcp-mmv-perl",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "libpcp-mmv1",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "libpcp-pmda-perl",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "libpcp-pmda3",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "libpcp-trace2",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "libpcp-web1",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "libpcp3",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "pcp",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "pcp-conf",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "pcp-export-pcp2graphite",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "pcp-export-pcp2influxdb",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "pcp-export-zabbix-agent",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "pcp-gui",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "pcp-import-collectl2pcp",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "pcp-import-ganglia2pcp",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "pcp-import-iostat2pcp",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "pcp-import-mrtg2pcp",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "pcp-import-sar2pcp",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "pcp-import-sheet2pcp",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "pcp-manager",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "pcp-testsuite",
            "binary_version": "5.0.3-1"
        },
        {
            "binary_name": "python3-pcp",
            "binary_version": "5.0.3-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16526.json"
Ubuntu:22.04:LTS
pcp

Package

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

Affected ranges

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

Affected versions

5.*
5.3.2-1
5.3.4-1
5.3.5-1
5.3.5-1build1
5.3.6-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libpcp-gui2",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "libpcp-import-perl",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "libpcp-import1",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "libpcp-logsummary-perl",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "libpcp-mmv-perl",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "libpcp-mmv1",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "libpcp-pmda-perl",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "libpcp-pmda3",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "libpcp-trace2",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "libpcp-web1",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "libpcp3",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "pcp",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "pcp-conf",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "pcp-export-pcp2elasticsearch",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "pcp-export-pcp2graphite",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "pcp-export-pcp2influxdb",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "pcp-export-pcp2json",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "pcp-export-pcp2spark",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "pcp-export-pcp2xlsx",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "pcp-export-pcp2xml",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "pcp-export-pcp2zabbix",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "pcp-export-zabbix-agent",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "pcp-gui",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "pcp-import-collectl2pcp",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "pcp-import-ganglia2pcp",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "pcp-import-iostat2pcp",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "pcp-import-mrtg2pcp",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "pcp-import-sar2pcp",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "pcp-import-sheet2pcp",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "pcp-pmda-infiniband",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "pcp-testsuite",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "pcp-zeroconf",
            "binary_version": "5.3.6-1build1"
        },
        {
            "binary_name": "python3-pcp",
            "binary_version": "5.3.6-1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16526.json"
Ubuntu:24.04:LTS
pcp

Package

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

Affected ranges

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

Affected versions

6.*
6.0.5-1
6.1.0-1
6.1.1-1
6.1.1-1build2
6.2.0-1
6.2.0-1.1build3
6.2.0-1.1build4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libpcp-archive1t64",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "libpcp-gui2t64",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "libpcp-import-perl",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "libpcp-import1t64",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "libpcp-logsummary-perl",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "libpcp-mmv-perl",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "libpcp-mmv1t64",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "libpcp-pmda-perl",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "libpcp-pmda3t64",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "libpcp-trace2t64",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "libpcp-web1t64",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "libpcp3t64",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "pcp",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "pcp-conf",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "pcp-export-pcp2elasticsearch",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "pcp-export-pcp2graphite",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "pcp-export-pcp2influxdb",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "pcp-export-pcp2json",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "pcp-export-pcp2spark",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "pcp-export-pcp2xlsx",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "pcp-export-pcp2xml",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "pcp-export-pcp2zabbix",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "pcp-export-zabbix-agent",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "pcp-gui",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "pcp-import-collectl2pcp",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "pcp-import-ganglia2pcp",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "pcp-import-iostat2pcp",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "pcp-import-mrtg2pcp",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "pcp-import-sar2pcp",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "pcp-import-sheet2pcp",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "pcp-pmda-infiniband",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "pcp-testsuite",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "pcp-zeroconf",
            "binary_version": "6.2.0-1.1build4"
        },
        {
            "binary_name": "python3-pcp",
            "binary_version": "6.2.0-1.1build4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16526.json"
Ubuntu:26.04:LTS
pcp

Package

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

Affected ranges

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

Affected versions

6.*
6.3.8-1
7.*
7.0.2-1
7.1.0-1
7.1.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libpcp-archive1",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "libpcp-gui2",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "libpcp-import-perl",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "libpcp-import1",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "libpcp-logsummary-perl",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "libpcp-mmv-perl",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "libpcp-mmv1",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "libpcp-pmda-perl",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "libpcp-pmda3",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "libpcp-trace2",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "libpcp-web1",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "libpcp3",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "libpcp4",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "pcp",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "pcp-conf",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "pcp-export-pcp2elasticsearch",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "pcp-export-pcp2graphite",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "pcp-export-pcp2influxdb",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "pcp-export-pcp2json",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "pcp-export-pcp2spark",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "pcp-export-pcp2xlsx",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "pcp-export-pcp2xml",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "pcp-export-pcp2zabbix",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "pcp-export-zabbix-agent",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "pcp-gui",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "pcp-import-benchmarks",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "pcp-import-collectl2pcp",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "pcp-import-ganglia2pcp",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "pcp-import-guidellm2pcp",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "pcp-import-iostat2pcp",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "pcp-import-mrtg2pcp",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "pcp-import-sar2pcp",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "pcp-import-sheet2pcp",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "pcp-pmda-infiniband",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "pcp-testsuite",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "pcp-zeroconf",
            "binary_version": "7.1.1-1"
        },
        {
            "binary_name": "python3-pcp",
            "binary_version": "7.1.1-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16526.json"