UBUNTU-CVE-2026-34040

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Source
https://ubuntu.com/security/CVE-2026-34040
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34040.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-34040
Upstream
Published
2026-03-31T03:15:00Z
Modified
2026-04-08T15:12:20.644123Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Moby is an open source container framework. Prior to version 29.3.1, a security vulnerability has been detected that allows attackers to bypass authorization plugins (AuthZ). This issue has been patched in version 29.3.1.

References

Affected packages

Ubuntu:25.10
docker.io

Package

Name
docker.io
Purl
pkg:deb/ubuntu/docker.io@26.1.5+dfsg1-9ubuntu1?arch=source&distro=questing

Affected ranges

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

Affected versions

26.*
26.1.5+dfsg1-9ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "26.1.5+dfsg1-9ubuntu1",
            "binary_name": "golang-github-docker-docker-dev"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34040.json"
docker.io-app

Package

Name
docker.io-app
Purl
pkg:deb/ubuntu/docker.io-app@29.1.3-0ubuntu3~25.10.1?arch=source&distro=questing

Affected ranges

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

Affected versions

27.*
27.5.1-0ubuntu3
27.5.1-0ubuntu4
28.*
28.2.2-0ubuntu1
29.*
29.1.3-0ubuntu3~25.10.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "29.1.3-0ubuntu3~25.10.1",
            "binary_name": "docker.io"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34040.json"
Ubuntu:Pro:16.04:LTS
docker.io

Package

Name
docker.io
Purl
pkg:deb/ubuntu/docker.io@18.09.7-0ubuntu1~16.04.9+esm2?arch=source&distro=esm-infra/xenial

Affected ranges

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

Affected versions

1.*
1.6.2~dfsg1-1ubuntu4
1.10.2-0ubuntu3
1.10.2-0ubuntu4
1.10.3-0ubuntu1
1.10.3-0ubuntu4
1.10.3-0ubuntu5
1.10.3-0ubuntu6
1.11.2-0ubuntu5~16.04
1.12.1-0ubuntu13~16.04.1
1.12.3-0ubuntu4~16.04.2
1.12.6-0ubuntu1~16.04.1
1.13.1-0ubuntu1~16.04.2
17.*
17.03.2-0ubuntu2~16.04.1
18.*
18.06.1-0ubuntu1~16.04.2
18.06.1-0ubuntu1.2~16.04.1
18.09.2-0ubuntu1~16.04.1
18.09.5-0ubuntu1~16.04.2
18.09.7-0ubuntu1~16.04.1
18.09.7-0ubuntu1~16.04.4
18.09.7-0ubuntu1~16.04.5
18.09.7-0ubuntu1~16.04.6
18.09.7-0ubuntu1~16.04.7
18.09.7-0ubuntu1~16.04.9+esm1
18.09.7-0ubuntu1~16.04.9+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "18.09.7-0ubuntu1~16.04.9+esm2",
            "binary_name": "docker.io"
        },
        {
            "binary_version": "18.09.7-0ubuntu1~16.04.9+esm2",
            "binary_name": "golang-docker-dev"
        },
        {
            "binary_version": "18.09.7-0ubuntu1~16.04.9+esm2",
            "binary_name": "golang-github-docker-docker-dev"
        },
        {
            "binary_version": "18.09.7-0ubuntu1~16.04.9+esm2",
            "binary_name": "vim-syntax-docker"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34040.json"
Ubuntu:Pro:18.04:LTS
docker.io

Package

Name
docker.io
Purl
pkg:deb/ubuntu/docker.io@20.10.21-0ubuntu1~18.04.3+esm3?arch=source&distro=esm-apps/bionic

Affected ranges

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

Affected versions

1.*
1.13.1-0ubuntu6
17.*
17.03.2-0ubuntu1
17.03.2-0ubuntu3
17.03.2-0ubuntu5
17.12.1-0ubuntu1
18.*
18.06.1-0ubuntu1~18.04.1
18.06.1-0ubuntu1.2~18.04.1
18.09.2-0ubuntu1~18.04.1
18.09.5-0ubuntu1~18.04.2
18.09.7-0ubuntu1~18.04.1
18.09.7-0ubuntu1~18.04.3
18.09.7-0ubuntu1~18.04.4
19.*
19.03.6-0ubuntu1~18.04.1
19.03.6-0ubuntu1~18.04.2
19.03.6-0ubuntu1~18.04.3
20.*
20.10.2-0ubuntu1~18.04.2
20.10.2-0ubuntu1~18.04.3
20.10.7-0ubuntu1~18.04.1
20.10.7-0ubuntu1~18.04.2
20.10.7-0ubuntu5~18.04.2
20.10.7-0ubuntu5~18.04.3
20.10.12-0ubuntu2~18.04.1
20.10.21-0ubuntu1~18.04.2
20.10.21-0ubuntu1~18.04.3
20.10.21-0ubuntu1~18.04.3+esm1
20.10.21-0ubuntu1~18.04.3+esm2
20.10.21-0ubuntu1~18.04.3+esm3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "20.10.21-0ubuntu1~18.04.3+esm3",
            "binary_name": "docker.io"
        },
        {
            "binary_version": "20.10.21-0ubuntu1~18.04.3+esm3",
            "binary_name": "golang-docker-dev"
        },
        {
            "binary_version": "20.10.21-0ubuntu1~18.04.3+esm3",
            "binary_name": "golang-github-docker-docker-dev"
        },
        {
            "binary_version": "20.10.21-0ubuntu1~18.04.3+esm3",
            "binary_name": "vim-syntax-docker"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34040.json"
Ubuntu:Pro:20.04:LTS
docker.io

Package

Name
docker.io
Purl
pkg:deb/ubuntu/docker.io@20.10.21-0ubuntu1~20.04.6+esm2?arch=source&distro=esm-apps/focal

Affected ranges

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

Affected versions

19.*
19.03.2-0ubuntu1
19.03.6-0ubuntu1
19.03.8-0ubuntu1
19.03.8-0ubuntu1.20.04
19.03.8-0ubuntu1.20.04.1
19.03.8-0ubuntu1.20.04.2
20.*
20.10.2-0ubuntu1~20.04.2
20.10.2-0ubuntu1~20.04.3
20.10.7-0ubuntu1~20.04.1
20.10.7-0ubuntu1~20.04.2
20.10.7-0ubuntu5~20.04.1
20.10.7-0ubuntu5~20.04.2
20.10.12-0ubuntu2~20.04.1
20.10.21-0ubuntu1~20.04.1
20.10.21-0ubuntu1~20.04.2
20.10.21-0ubuntu1~20.04.4
20.10.21-0ubuntu1~20.04.5
20.10.21-0ubuntu1~20.04.6
20.10.21-0ubuntu1~20.04.6+esm1
20.10.21-0ubuntu1~20.04.6+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "20.10.21-0ubuntu1~20.04.6+esm2",
            "binary_name": "golang-docker-dev"
        },
        {
            "binary_version": "20.10.21-0ubuntu1~20.04.6+esm2",
            "binary_name": "golang-github-docker-docker-dev"
        },
        {
            "binary_version": "20.10.21-0ubuntu1~20.04.6+esm2",
            "binary_name": "vim-syntax-docker"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34040.json"
docker.io-app

Package

Name
docker.io-app
Purl
pkg:deb/ubuntu/docker.io-app@26.1.3-0ubuntu1~20.04.1+esm1?arch=source&distro=esm-apps/focal

Affected ranges

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

Affected versions

20.*
20.10.25-0ubuntu1~20.04.1
20.10.25-0ubuntu1~20.04.2
24.*
24.0.5-0ubuntu1~20.04.1
24.0.7-0ubuntu2~20.04.1
26.*
26.1.3-0ubuntu1~20.04.1
26.1.3-0ubuntu1~20.04.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "26.1.3-0ubuntu1~20.04.1+esm1",
            "binary_name": "docker.io"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34040.json"
Ubuntu:Pro:22.04:LTS
docker.io

Package

Name
docker.io
Purl
pkg:deb/ubuntu/docker.io@20.10.21-0ubuntu1~22.04.8+esm1?arch=source&distro=esm-apps/jammy

Affected ranges

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

Affected versions

20.*
20.10.7-0ubuntu5
20.10.7-0ubuntu7
20.10.12-0ubuntu1
20.10.12-0ubuntu2
20.10.12-0ubuntu3
20.10.12-0ubuntu3+gke1.24.1
20.10.12-0ubuntu4
20.10.21-0ubuntu1~22.04.2
20.10.21-0ubuntu1~22.04.3
20.10.21-0ubuntu1~22.04.5
20.10.21-0ubuntu1~22.04.6
20.10.21-0ubuntu1~22.04.7
20.10.21-0ubuntu1~22.04.7+esm1
20.10.21-0ubuntu1~22.04.7+esm2
20.10.21-0ubuntu1~22.04.8
20.10.21-0ubuntu1~22.04.8+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "20.10.21-0ubuntu1~22.04.8+esm1",
            "binary_name": "golang-docker-dev"
        },
        {
            "binary_version": "20.10.21-0ubuntu1~22.04.8+esm1",
            "binary_name": "golang-github-docker-docker-dev"
        },
        {
            "binary_version": "20.10.21-0ubuntu1~22.04.8+esm1",
            "binary_name": "vim-syntax-docker"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34040.json"
docker.io-app

Package

Name
docker.io-app
Purl
pkg:deb/ubuntu/docker.io-app@27.5.1-0ubuntu3~22.04.2?arch=source&distro=esm-apps/jammy

Affected ranges

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

Affected versions

20.*
20.10.25-0ubuntu1~22.04.1
20.10.25-0ubuntu1~22.04.2
24.*
24.0.5-0ubuntu1~22.04.1
24.0.7-0ubuntu2~22.04.1
26.*
26.1.3-0ubuntu1~22.04.1
26.1.3-0ubuntu1~22.04.1+esm1
27.*
27.5.1-0ubuntu3~22.04.1
27.5.1-0ubuntu3~22.04.2
28.*
28.2.2-0ubuntu1~22.04.1
29.*
29.1.3-0ubuntu3~22.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "27.5.1-0ubuntu3~22.04.2",
            "binary_name": "docker.io"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34040.json"
Ubuntu:Pro:24.04:LTS
docker.io

Package

Name
docker.io
Purl
pkg:deb/ubuntu/docker.io@20.10.25+dfsg1-2ubuntu1.24.04.1+esm1?arch=source&distro=esm-apps/noble

Affected ranges

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

Affected versions

20.*
20.10.24+dfsg1-1ubuntu2
20.10.25+dfsg1-2ubuntu1
20.10.25+dfsg1-2ubuntu1+esm1
20.10.25+dfsg1-2ubuntu1+esm2
20.10.25+dfsg1-2ubuntu1.24.04.1
20.10.25+dfsg1-2ubuntu1.24.04.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "20.10.25+dfsg1-2ubuntu1.24.04.1+esm1",
            "binary_name": "golang-github-docker-docker-dev"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34040.json"
docker.io-app

Package

Name
docker.io-app
Purl
pkg:deb/ubuntu/docker.io-app@27.5.1-0ubuntu3~24.04.2?arch=source&distro=esm-apps/noble

Affected ranges

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

Affected versions

24.*
24.0.5-0ubuntu1
24.0.7-0ubuntu1
24.0.7-0ubuntu2
24.0.7-0ubuntu3
24.0.7-0ubuntu4
24.0.7-0ubuntu4.1
26.*
26.1.3-0ubuntu1~24.04.1
26.1.3-0ubuntu1~24.04.1+esm1
27.*
27.5.1-0ubuntu3~24.04.1
27.5.1-0ubuntu3~24.04.2
28.*
28.2.2-0ubuntu1~24.04.1
29.*
29.1.3-0ubuntu3~24.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "27.5.1-0ubuntu3~24.04.2",
            "binary_name": "docker.io"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34040.json"