UBUNTU-CVE-2026-27138

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Source
https://ubuntu.com/security/CVE-2026-27138
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27138.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-27138
Upstream
Published
2026-03-06T22:16:00Z
Modified
2026-05-06T09:13:22.801183Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Certificate verification can panic when a certificate in the chain has an empty DNS name and another certificate in the chain has excluded name constraints. This can crash programs that are either directly verifying X.509 certificate chains, or those that use TLS.

References

Affected packages

Ubuntu:22.04:LTS
golang-1.24

Package

Name
golang-1.24
Purl
pkg:deb/ubuntu/golang-1.24@1.24.4-1ubuntu1~22.04.2?arch=source&distro=jammy

Affected ranges

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

Affected versions

1.*
1.24.4-1ubuntu1~22.04.1
1.24.4-1ubuntu1~22.04.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.24.4-1ubuntu1~22.04.2",
            "binary_name": "golang-1.24"
        },
        {
            "binary_version": "1.24.4-1ubuntu1~22.04.2",
            "binary_name": "golang-1.24-go"
        },
        {
            "binary_version": "1.24.4-1ubuntu1~22.04.2",
            "binary_name": "golang-1.24-src"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27138.json"
Ubuntu:24.04:LTS
golang-1.24

Package

Name
golang-1.24
Purl
pkg:deb/ubuntu/golang-1.24@1.24.4-1ubuntu1~24.04.2?arch=source&distro=noble

Affected ranges

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

Affected versions

1.*
1.24.4-1ubuntu1~24.04.1
1.24.4-1ubuntu1~24.04.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.24.4-1ubuntu1~24.04.2",
            "binary_name": "golang-1.24"
        },
        {
            "binary_version": "1.24.4-1ubuntu1~24.04.2",
            "binary_name": "golang-1.24-go"
        },
        {
            "binary_version": "1.24.4-1ubuntu1~24.04.2",
            "binary_name": "golang-1.24-src"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27138.json"
Ubuntu:25.10
golang-1.24

Package

Name
golang-1.24
Purl
pkg:deb/ubuntu/golang-1.24@1.24.4-1ubuntu1?arch=source&distro=questing

Affected ranges

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

Affected versions

1.*
1.24.2-1
1.24.2-2
1.24.4-1
1.24.4-1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.24.4-1ubuntu1",
            "binary_name": "golang-1.24"
        },
        {
            "binary_version": "1.24.4-1ubuntu1",
            "binary_name": "golang-1.24-go"
        },
        {
            "binary_version": "1.24.4-1ubuntu1",
            "binary_name": "golang-1.24-src"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27138.json"
golang-1.25

Package

Name
golang-1.25
Purl
pkg:deb/ubuntu/golang-1.25@1.25.0-0ubuntu1?arch=source&distro=questing

Affected ranges

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

Affected versions

1.*
1.25.0-0ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.25.0-0ubuntu1",
            "binary_name": "golang-1.25"
        },
        {
            "binary_version": "1.25.0-0ubuntu1",
            "binary_name": "golang-1.25-go"
        },
        {
            "binary_version": "1.25.0-0ubuntu1",
            "binary_name": "golang-1.25-src"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27138.json"
Ubuntu:26.04
golang-1.24

Package

Name
golang-1.24
Purl
pkg:deb/ubuntu/golang-1.24@1.24.13-2?arch=source&distro=resolute

Affected ranges

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

Affected versions

1.*
1.24.4-1ubuntu1
1.24.9-1
1.24.13-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.24.13-2",
            "binary_name": "golang-1.24"
        },
        {
            "binary_version": "1.24.13-2",
            "binary_name": "golang-1.24-go"
        },
        {
            "binary_version": "1.24.13-2",
            "binary_name": "golang-1.24-src"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27138.json"
golang-1.25

Package

Name
golang-1.25
Purl
pkg:deb/ubuntu/golang-1.25@1.25.7-2?arch=source&distro=resolute

Affected ranges

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

Affected versions

1.*
1.25.0-0ubuntu1
1.25.7-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.25.7-2",
            "binary_name": "golang-1.25"
        },
        {
            "binary_version": "1.25.7-2",
            "binary_name": "golang-1.25-go"
        },
        {
            "binary_version": "1.25.7-2",
            "binary_name": "golang-1.25-src"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27138.json"
golang-1.26

Package

Name
golang-1.26
Purl
pkg:deb/ubuntu/golang-1.26@1.26.0-1?arch=source&distro=resolute

Affected ranges

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

Affected versions

1.*
1.26~rc3-2
1.26.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.26.0-1",
            "binary_name": "golang-1.26"
        },
        {
            "binary_version": "1.26.0-1",
            "binary_name": "golang-1.26-go"
        },
        {
            "binary_version": "1.26.0-1",
            "binary_name": "golang-1.26-src"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27138.json"