UBUNTU-CVE-2026-16743

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Source
https://ubuntu.com/security/CVE-2026-16743
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16743.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-16743
Upstream
  • CVE-2026-16743
Withdrawn
2026-08-17T21:12:26Z
Published
2026-07-24T13:17:00Z
Modified
2026-08-17T23:45:08Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A flaw was found in accountsservice. The systemd-homed code path for SetIconFile opens a user-supplied filename as root without the validation and privilege drop performed by the classic handler. A local attacker with a systemd-homed-managed account can read arbitrary files accessible to the accounts-daemon process.

References

Affected packages

Ubuntu:22.04:LTS
accountsservice

Package

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

Affected ranges

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

Affected versions

0.*
0.6.55-0ubuntu14
0.6.55-3ubuntu1
0.6.55-3ubuntu2
0.6.55-3ubuntu4
0.6.55-3ubuntu5
0.6.55-3ubuntu6
22.*
22.07.5-2ubuntu1
22.07.5-2ubuntu1.3
22.07.5-2ubuntu1.4
22.07.5-2ubuntu1.5
22.07.5-2ubuntu1.6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "accountsservice",
            "binary_version": "22.07.5-2ubuntu1.6"
        },
        {
            "binary_name": "gir1.2-accountsservice-1.0",
            "binary_version": "22.07.5-2ubuntu1.6"
        },
        {
            "binary_name": "libaccountsservice0",
            "binary_version": "22.07.5-2ubuntu1.6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16743.json"
Ubuntu:24.04:LTS
accountsservice

Package

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

Affected ranges

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

Affected versions

23.*
23.13.9-2ubuntu2
23.13.9-2ubuntu4
23.13.9-2ubuntu6
23.13.9-2ubuntu6.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "accountsservice",
            "binary_version": "23.13.9-2ubuntu6.1"
        },
        {
            "binary_name": "gir1.2-accountsservice-1.0",
            "binary_version": "23.13.9-2ubuntu6.1"
        },
        {
            "binary_name": "libaccountsservice0",
            "binary_version": "23.13.9-2ubuntu6.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16743.json"
Ubuntu:26.04:LTS
accountsservice

Package

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

Affected ranges

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

Affected versions

23.*
23.13.9-7ubuntu1
23.13.9-8ubuntu1
23.13.9-8ubuntu2
23.13.9-8ubuntu4
23.13.9-8ubuntu5
23.13.9-8ubuntu5.1
23.13.9-8ubuntu5.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "accountsservice",
            "binary_version": "23.13.9-8ubuntu5.2"
        },
        {
            "binary_name": "gir1.2-accountsservice-1.0",
            "binary_version": "23.13.9-8ubuntu5.2"
        },
        {
            "binary_name": "libaccountsservice0",
            "binary_version": "23.13.9-8ubuntu5.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16743.json"
Ubuntu:Pro:14.04:LTS
accountsservice

Package

Name
accountsservice
Purl
pkg:deb/ubuntu/accountsservice?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

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

Affected versions

0.*
0.6.34-0ubuntu6
0.6.34-0ubuntu7
0.6.35-0ubuntu1
0.6.35-0ubuntu2
0.6.35-0ubuntu3
0.6.35-0ubuntu4
0.6.35-0ubuntu5
0.6.35-0ubuntu6
0.6.35-0ubuntu7
0.6.35-0ubuntu7.1
0.6.35-0ubuntu7.2
0.6.35-0ubuntu7.3
0.6.35-0ubuntu7.3+esm2
0.6.35-0ubuntu7.3+esm3
0.6.35-0ubuntu7.3+esm4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "accountsservice",
            "binary_version": "0.6.35-0ubuntu7.3+esm4"
        },
        {
            "binary_name": "gir1.2-accountsservice-1.0",
            "binary_version": "0.6.35-0ubuntu7.3+esm4"
        },
        {
            "binary_name": "libaccountsservice0",
            "binary_version": "0.6.35-0ubuntu7.3+esm4"
        },
        {
            "binary_name": "libpam-pin",
            "binary_version": "0.6.35-0ubuntu7.3+esm4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16743.json"
Ubuntu:Pro:16.04:LTS
accountsservice

Package

Name
accountsservice
Purl
pkg:deb/ubuntu/accountsservice?arch=source&distro=esm-infra-legacy%2Fxenial

Affected ranges

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

Affected versions

0.*
0.6.40-2ubuntu5
0.6.40-2ubuntu6
0.6.40-2ubuntu7
0.6.40-2ubuntu8
0.6.40-2ubuntu9
0.6.40-2ubuntu10
0.6.40-2ubuntu11
0.6.40-2ubuntu11.1
0.6.40-2ubuntu11.2
0.6.40-2ubuntu11.3
0.6.40-2ubuntu11.6
0.6.40-2ubuntu11.6+esm1
0.6.40-2ubuntu11.6+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "accountsservice",
            "binary_version": "0.6.40-2ubuntu11.6+esm2"
        },
        {
            "binary_name": "gir1.2-accountsservice-1.0",
            "binary_version": "0.6.40-2ubuntu11.6+esm2"
        },
        {
            "binary_name": "libaccountsservice0",
            "binary_version": "0.6.40-2ubuntu11.6+esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16743.json"
Ubuntu:Pro:18.04:LTS
accountsservice

Package

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

Affected ranges

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

Affected versions

0.*
0.6.42-0ubuntu3
0.6.42-0ubuntu4
0.6.45-1ubuntu1
0.6.45-1ubuntu1.3
0.6.45-1ubuntu1.3+esm1
0.6.45-1ubuntu1.3+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "accountsservice",
            "binary_version": "0.6.45-1ubuntu1.3+esm2"
        },
        {
            "binary_name": "gir1.2-accountsservice-1.0",
            "binary_version": "0.6.45-1ubuntu1.3+esm2"
        },
        {
            "binary_name": "libaccountsservice0",
            "binary_version": "0.6.45-1ubuntu1.3+esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16743.json"
Ubuntu:Pro:20.04:LTS
accountsservice

Package

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

Affected ranges

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

Affected versions

0.*
0.6.55-0ubuntu10
0.6.55-0ubuntu11
0.6.55-0ubuntu12~20.04.1
0.6.55-0ubuntu12~20.04.2
0.6.55-0ubuntu12~20.04.4
0.6.55-0ubuntu12~20.04.5
0.6.55-0ubuntu12~20.04.6
0.6.55-0ubuntu12~20.04.7
0.6.55-0ubuntu12~20.04.7+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "accountsservice",
            "binary_version": "0.6.55-0ubuntu12~20.04.7+esm1"
        },
        {
            "binary_name": "gir1.2-accountsservice-1.0",
            "binary_version": "0.6.55-0ubuntu12~20.04.7+esm1"
        },
        {
            "binary_name": "libaccountsservice0",
            "binary_version": "0.6.55-0ubuntu12~20.04.7+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-16743.json"