UBUNTU-CVE-2026-96282

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Source

https://ubuntu.com/security/CVE-2026-96282

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96282.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-96282

Upstream

CVE-2026-96282

Published

2026-09-27T22:17:00Z

Modified

2026-10-01T00:22:42Z

Severity

3.1 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

A malicious Flatpak extension can probe the host filesystem to determine what files and directories exist at arbitrary paths, and host directory listings can be disclosed to sandboxed applications using the extension. Additionally, unvalidated extension metadata can cause extension content to be mounted at unintended locations inside the sandbox.

References

Affected packages

Ubuntu:Pro:18.04:LTS / flatpak

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.8.7-5

0.10.0-1

0.10.0-2

0.10.1-1

0.10.2-1

0.10.2.1-1

0.10.2.1-2

0.10.3-1

0.11.1-0ubuntu1

0.11.3-2

0.11.3-3

0.11.7-0ubuntu0.1

1.*

1.0.1-0ubuntu0.1

1.0.6-0ubuntu0.1

1.0.7-0ubuntu0.18.04.1

1.0.8-0ubuntu0.18.04.1

1.0.9-0ubuntu0.1

1.0.9-0ubuntu0.2

1.0.9-0ubuntu0.3

1.0.9-0ubuntu0.4

1.0.9-0ubuntu0.4+esm1

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "flatpak",
            "binary_version":  "1.0.9-0ubuntu0.4+esm1"
        },
        {
            "binary_name":  "flatpak-tests",
            "binary_version":  "1.0.9-0ubuntu0.4+esm1"
        },
        {
            "binary_name":  "gir1.2-flatpak-1.0",
            "binary_version":  "1.0.9-0ubuntu0.4+esm1"
        },
        {
            "binary_name":  "libflatpak0",
            "binary_version":  "1.0.9-0ubuntu0.4+esm1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96282.json"

Ubuntu:Pro:20.04:LTS / flatpak

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.4.3-1

1.6.0-1

1.6.1-1

1.6.2-1

1.6.3-1

1.6.5-0ubuntu0.1

1.6.5-0ubuntu0.2

1.6.5-0ubuntu0.3

1.6.5-0ubuntu0.4

1.6.5-0ubuntu0.5

1.6.5-0ubuntu0.5+esm1

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "flatpak",
            "binary_version":  "1.6.5-0ubuntu0.5+esm1"
        },
        {
            "binary_name":  "flatpak-tests",
            "binary_version":  "1.6.5-0ubuntu0.5+esm1"
        },
        {
            "binary_name":  "gir1.2-flatpak-1.0",
            "binary_version":  "1.6.5-0ubuntu0.5+esm1"
        },
        {
            "binary_name":  "libflatpak0",
            "binary_version":  "1.6.5-0ubuntu0.5+esm1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96282.json"

Ubuntu:Pro:22.04:LTS / flatpak

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.10.2-3

1.12.2-1

1.12.2-2

1.12.3-1

1.12.4-1

1.12.5-1

1.12.6-1

1.12.7-1

1.12.7-1ubuntu0.1

1.12.7-1ubuntu0.1+esm1

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "flatpak",
            "binary_version":  "1.12.7-1ubuntu0.1+esm1"
        },
        {
            "binary_name":  "flatpak-tests",
            "binary_version":  "1.12.7-1ubuntu0.1+esm1"
        },
        {
            "binary_name":  "gir1.2-flatpak-1.0",
            "binary_version":  "1.12.7-1ubuntu0.1+esm1"
        },
        {
            "binary_name":  "libflatpak0",
            "binary_version":  "1.12.7-1ubuntu0.1+esm1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96282.json"

Ubuntu:Pro:24.04:LTS / flatpak

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.14.4-2

1.14.5-1

1.14.5-1build1

1.14.5-1build4

1.14.5-1build5

1.14.5-1build6

1.14.6-1

1.14.6-1ubuntu0.1

1.14.6-1ubuntu0.1+esm1

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "flatpak",
            "binary_version":  "1.14.6-1ubuntu0.1+esm1"
        },
        {
            "binary_name":  "flatpak-tests",
            "binary_version":  "1.14.6-1ubuntu0.1+esm1"
        },
        {
            "binary_name":  "gir1.2-flatpak-1.0",
            "binary_version":  "1.14.6-1ubuntu0.1+esm1"
        },
        {
            "binary_name":  "libflatpak0",
            "binary_version":  "1.14.6-1ubuntu0.1+esm1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96282.json"

Ubuntu:26.04:LTS / flatpak

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.16.1-2ubuntu1

1.16.1-3ubuntu1

1.16.2-1

1.16.3-1

1.16.3-1build1

1.16.4-1

1.16.4-2

1.16.6-1

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "flatpak",
            "binary_version":  "1.16.6-1"
        },
        {
            "binary_name":  "flatpak-tests",
            "binary_version":  "1.16.6-1"
        },
        {
            "binary_name":  "gir1.2-flatpak-1.0",
            "binary_version":  "1.16.6-1"
        },
        {
            "binary_name":  "libflatpak0",
            "binary_version":  "1.16.6-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-96282.json"