UBUNTU-CVE-2026-5704

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Source
https://ubuntu.com/security/CVE-2026-5704
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5704.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-5704
Upstream
  • CVE-2026-5704
Published
2026-04-06T16:16:00Z
Modified
2026-05-20T16:26:24.372107088Z
Severity
  • 5.0 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N CVSS Calculator
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A flaw was found in tar. A remote attacker could exploit this vulnerability by crafting a malicious archive, leading to hidden file injection with fully attacker-controlled content. This bypasses pre-extraction inspection mechanisms, potentially allowing an attacker to introduce malicious files onto a system without detection.

References

Affected packages

Ubuntu:20.04:LTS
tar

Package

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

Affected ranges

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

Affected versions

1.*
1.30+dfsg-6
1.30+dfsg-7
1.30+dfsg-7ubuntu0.20.04.1
1.30+dfsg-7ubuntu0.20.04.2
1.30+dfsg-7ubuntu0.20.04.3
1.30+dfsg-7ubuntu0.20.04.4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tar",
            "binary_version": "1.30+dfsg-7ubuntu0.20.04.4"
        },
        {
            "binary_name": "tar-scripts",
            "binary_version": "1.30+dfsg-7ubuntu0.20.04.4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5704.json"
Ubuntu:22.04:LTS
tar

Package

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

Affected ranges

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

Affected versions

1.*
1.34+dfsg-1build1
1.34+dfsg-1build2
1.34+dfsg-1build3
1.34+dfsg-1ubuntu0.1.22.04.1
1.34+dfsg-1ubuntu0.1.22.04.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tar",
            "binary_version": "1.34+dfsg-1ubuntu0.1.22.04.2"
        },
        {
            "binary_name": "tar-scripts",
            "binary_version": "1.34+dfsg-1ubuntu0.1.22.04.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5704.json"
Ubuntu:24.04:LTS
tar

Package

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

Affected ranges

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

Affected versions

1.*
1.34+dfsg-1.2ubuntu1
1.34+dfsg-1.2ubuntu2
1.34+dfsg-1.3ubuntu1
1.34+dfsg-1.4
1.35+dfsg-2~build1
1.35+dfsg-2
1.35+dfsg-3
1.35+dfsg-3build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tar",
            "binary_version": "1.35+dfsg-3build1"
        },
        {
            "binary_name": "tar-scripts",
            "binary_version": "1.35+dfsg-3build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5704.json"
Ubuntu:25.10
tar

Package

Name
tar
Purl
pkg:deb/ubuntu/tar?arch=source&distro=questing

Affected ranges

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

Affected versions

1.*
1.35+dfsg-3.1
1.35+dfsg-3.1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tar",
            "binary_version": "1.35+dfsg-3.1build1"
        },
        {
            "binary_name": "tar-scripts",
            "binary_version": "1.35+dfsg-3.1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5704.json"
Ubuntu:26.04:LTS
tar

Package

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

Affected ranges

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

Affected versions

1.*
1.35+dfsg-3.1build1
1.35+dfsg-3.1build2
1.35+dfsg-4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tar",
            "binary_version": "1.35+dfsg-4"
        },
        {
            "binary_name": "tar-scripts",
            "binary_version": "1.35+dfsg-4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5704.json"
Ubuntu:Pro:14.04:LTS
tar

Package

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

Affected ranges

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

Affected versions

1.*
1.26+dfsg-8
1.27-3
1.27-4
1.27.1-1
1.27.1-1ubuntu0.1
1.27.1-1ubuntu0.1+esm1
1.27.1-1ubuntu0.1+esm2
1.27.1-1ubuntu0.1+esm3
1.27.1-1ubuntu0.1+esm4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tar",
            "binary_version": "1.27.1-1ubuntu0.1+esm4"
        },
        {
            "binary_name": "tar-scripts",
            "binary_version": "1.27.1-1ubuntu0.1+esm4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5704.json"
Ubuntu:Pro:16.04:LTS
tar

Package

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

Affected ranges

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

Affected versions

1.*
1.27.1-2
1.28-2ubuntu1
1.28-2.1
1.28-2.1ubuntu0.1
1.28-2.1ubuntu0.2
1.28-2.1ubuntu0.2+esm1
1.28-2.1ubuntu0.2+esm2
1.28-2.1ubuntu0.2+esm3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tar",
            "binary_version": "1.28-2.1ubuntu0.2+esm3"
        },
        {
            "binary_name": "tar-scripts",
            "binary_version": "1.28-2.1ubuntu0.2+esm3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5704.json"
Ubuntu:Pro:18.04:LTS
tar

Package

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

Affected ranges

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

Affected versions

1.*
1.29b-2
1.29b-2ubuntu0.1
1.29b-2ubuntu0.2
1.29b-2ubuntu0.3
1.29b-2ubuntu0.4
1.29b-2ubuntu0.4+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "tar",
            "binary_version": "1.29b-2ubuntu0.4+esm1"
        },
        {
            "binary_name": "tar-scripts",
            "binary_version": "1.29b-2ubuntu0.4+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-5704.json"