UBUNTU-CVE-2026-85498

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Source
https://ubuntu.com/security/CVE-2026-85498
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-85498.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-85498
Upstream
  • CVE-2026-85498
Published
2026-09-07T00:00:00Z
Modified
2026-09-07T08:46:07Z
Severity
  • Ubuntu - medium
Summary
[none]
Details

[Regression in CVE-2026-4897 fix (polkit read_cookie()) - stack buffer underflow]

References

Affected packages

Ubuntu:18.04:LTS
policykit-1

Package

Name
policykit-1
Purl
pkg:deb/ubuntu/policykit-1?arch=source&distro=bionic

Affected ranges

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

Affected versions

0.*
0.105-18
0.105-20
0.105-20ubuntu0.18.04.1
0.105-20ubuntu0.18.04.4
0.105-20ubuntu0.18.04.5
0.105-20ubuntu0.18.04.6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gir1.2-polkit-1.0",
            "binary_version": "0.105-20ubuntu0.18.04.6"
        },
        {
            "binary_name": "libpolkit-agent-1-0",
            "binary_version": "0.105-20ubuntu0.18.04.6"
        },
        {
            "binary_name": "libpolkit-backend-1-0",
            "binary_version": "0.105-20ubuntu0.18.04.6"
        },
        {
            "binary_name": "libpolkit-gobject-1-0",
            "binary_version": "0.105-20ubuntu0.18.04.6"
        },
        {
            "binary_name": "policykit-1",
            "binary_version": "0.105-20ubuntu0.18.04.6"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-85498.json"
Ubuntu:20.04:LTS
policykit-1

Package

Name
policykit-1
Purl
pkg:deb/ubuntu/policykit-1?arch=source&distro=focal

Affected ranges

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

Affected versions

0.*
0.105-26ubuntu1
0.105-26ubuntu1.1
0.105-26ubuntu1.2
0.105-26ubuntu1.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gir1.2-polkit-1.0",
            "binary_version": "0.105-26ubuntu1.3"
        },
        {
            "binary_name": "libpolkit-agent-1-0",
            "binary_version": "0.105-26ubuntu1.3"
        },
        {
            "binary_name": "libpolkit-gobject-1-0",
            "binary_version": "0.105-26ubuntu1.3"
        },
        {
            "binary_name": "policykit-1",
            "binary_version": "0.105-26ubuntu1.3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-85498.json"
Ubuntu:22.04:LTS
policykit-1

Package

Name
policykit-1
Purl
pkg:deb/ubuntu/policykit-1?arch=source&distro=jammy

Affected ranges

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

Affected versions

0.*
0.105-31
0.105-31ubuntu1
0.105-31.1
0.105-32
0.105-33
0.105-33ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gir1.2-polkit-1.0",
            "binary_version": "0.105-33ubuntu0.1"
        },
        {
            "binary_name": "libpolkit-agent-1-0",
            "binary_version": "0.105-33ubuntu0.1"
        },
        {
            "binary_name": "libpolkit-gobject-1-0",
            "binary_version": "0.105-33ubuntu0.1"
        },
        {
            "binary_name": "pkexec",
            "binary_version": "0.105-33ubuntu0.1"
        },
        {
            "binary_name": "policykit-1",
            "binary_version": "0.105-33ubuntu0.1"
        },
        {
            "binary_name": "polkitd",
            "binary_version": "0.105-33ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-85498.json"
Ubuntu:24.04:LTS
policykit-1

Package

Name
policykit-1
Purl
pkg:deb/ubuntu/policykit-1?arch=source&distro=noble

Affected ranges

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

Affected versions

Other
123-1
123-3
124-1
124-1ubuntu1
124-2ubuntu1
124-2ubuntu1.*
124-2ubuntu1.24.04.2
124-2ubuntu1.24.04.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gir1.2-polkit-1.0",
            "binary_version": "124-2ubuntu1.24.04.3"
        },
        {
            "binary_name": "libpolkit-agent-1-0",
            "binary_version": "124-2ubuntu1.24.04.3"
        },
        {
            "binary_name": "libpolkit-gobject-1-0",
            "binary_version": "124-2ubuntu1.24.04.3"
        },
        {
            "binary_name": "pkexec",
            "binary_version": "124-2ubuntu1.24.04.3"
        },
        {
            "binary_name": "policykit-1",
            "binary_version": "124-2ubuntu1.24.04.3"
        },
        {
            "binary_name": "polkitd",
            "binary_version": "124-2ubuntu1.24.04.3"
        },
        {
            "binary_name": "polkitd-pkla",
            "binary_version": "124-2ubuntu1.24.04.3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-85498.json"
Ubuntu:26.04:LTS
policykit-1

Package

Name
policykit-1
Purl
pkg:deb/ubuntu/policykit-1?arch=source&distro=resolute

Affected ranges

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

Affected versions

Other
126-2
127-1
127-2
127-2ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gir1.2-polkit-1.0",
            "binary_version": "127-2ubuntu1"
        },
        {
            "binary_name": "libpolkit-agent-1-0",
            "binary_version": "127-2ubuntu1"
        },
        {
            "binary_name": "libpolkit-gobject-1-0",
            "binary_version": "127-2ubuntu1"
        },
        {
            "binary_name": "pkexec",
            "binary_version": "127-2ubuntu1"
        },
        {
            "binary_name": "polkitd",
            "binary_version": "127-2ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-85498.json"
Ubuntu:Pro:14.04:LTS
policykit-1

Package

Name
policykit-1
Purl
pkg:deb/ubuntu/policykit-1?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.*
0.105-3ubuntu3
0.105-4ubuntu1
0.105-4ubuntu2
0.105-4ubuntu2.14.04.1
0.105-4ubuntu3.14.04.1
0.105-4ubuntu3.14.04.2
0.105-4ubuntu3.14.04.5
0.105-4ubuntu3.14.04.6
0.105-4ubuntu3.14.04.6+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gir1.2-polkit-1.0",
            "binary_version": "0.105-4ubuntu3.14.04.6+esm1"
        },
        {
            "binary_name": "libpolkit-agent-1-0",
            "binary_version": "0.105-4ubuntu3.14.04.6+esm1"
        },
        {
            "binary_name": "libpolkit-backend-1-0",
            "binary_version": "0.105-4ubuntu3.14.04.6+esm1"
        },
        {
            "binary_name": "libpolkit-gobject-1-0",
            "binary_version": "0.105-4ubuntu3.14.04.6+esm1"
        },
        {
            "binary_name": "policykit-1",
            "binary_version": "0.105-4ubuntu3.14.04.6+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-85498.json"
Ubuntu:Pro:16.04:LTS
policykit-1

Package

Name
policykit-1
Purl
pkg:deb/ubuntu/policykit-1?arch=source&distro=esm-infra%2Fxenial

Affected ranges

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

Affected versions

0.*
0.105-11ubuntu2
0.105-13
0.105-13ubuntu1
0.105-14
0.105-14.1
0.105-14.1ubuntu0.1
0.105-14.1ubuntu0.4
0.105-14.1ubuntu0.5
0.105-14.1ubuntu0.5+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "gir1.2-polkit-1.0",
            "binary_version": "0.105-14.1ubuntu0.5+esm1"
        },
        {
            "binary_name": "libpolkit-agent-1-0",
            "binary_version": "0.105-14.1ubuntu0.5+esm1"
        },
        {
            "binary_name": "libpolkit-backend-1-0",
            "binary_version": "0.105-14.1ubuntu0.5+esm1"
        },
        {
            "binary_name": "libpolkit-gobject-1-0",
            "binary_version": "0.105-14.1ubuntu0.5+esm1"
        },
        {
            "binary_name": "policykit-1",
            "binary_version": "0.105-14.1ubuntu0.5+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-85498.json"