USN-8286-1

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Source
https://ubuntu.com/security/notices/USN-8286-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8286-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-8286-1
Upstream
Related
Published
2026-05-20T13:16:24Z
Modified
2026-06-09T21:15:29.210041066Z
Summary
openvpn vulnerabilities
Details

Guannan Wang, Zhanpeng Liu, Guancheng Li, and Emma Reuter discovered that OpenVPN incorrectly handled suitably malformed packets with valid tls-crypt-v2 keys. An attacker could possibly use this issue to cause OpenVPN to crash, resulting in a denial of service. (CVE-2026-35058)

Guannan Wang, Zhanpeng Liu, and Guancheng Li discovered that OpenVPN had a race condition in the TLS handshake process that could leak packet data from a previous handshake under certain circumstances. An attacker could possibly use this issue to obtain sensitive information. (CVE-2026-40215)

References

Affected packages

Ubuntu:22.04:LTS / openvpn

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.5.11-0ubuntu0.22.04.3

Affected versions

2.*
2.5.1-3ubuntu1
2.5.1-3ubuntu2
2.5.1-3ubuntu4
2.5.1-3ubuntu5
2.5.5-1ubuntu1
2.5.5-1ubuntu3
2.5.5-1ubuntu3.1
2.5.9-0ubuntu0.22.04.2
2.5.9-0ubuntu0.22.04.3
2.5.11-0ubuntu0.22.04.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "2.5.11-0ubuntu0.22.04.3",
            "binary_name": "openvpn"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "severity": [
                {
                    "type": "CVSS_V4",
                    "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2026-35058"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V4",
                    "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:L/SI:N/SA:L"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2026-40215"
        }
    ],
    "ecosystem": "Ubuntu:22.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8286-1.json"

Ubuntu:24.04:LTS / openvpn

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.6.19-0ubuntu0.24.04.2

Affected versions

2.*
2.6.5-0ubuntu1
2.6.7-1ubuntu1
2.6.9-1ubuntu2
2.6.9-1ubuntu3
2.6.9-1ubuntu4
2.6.9-1ubuntu4.1
2.6.12-0ubuntu0.24.04.1
2.6.12-0ubuntu0.24.04.3
2.6.14-0ubuntu0.24.04.1
2.6.14-0ubuntu0.24.04.2
2.6.14-0ubuntu0.24.04.3
2.6.19-0ubuntu0.24.04.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "2.6.19-0ubuntu0.24.04.2",
            "binary_name": "openvpn"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "severity": [
                {
                    "type": "CVSS_V4",
                    "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2026-35058"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V4",
                    "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:L/SI:N/SA:L"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2026-40215"
        }
    ],
    "ecosystem": "Ubuntu:24.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8286-1.json"

Ubuntu:25.10 / openvpn

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.6.19-0ubuntu0.25.10.2

Affected versions

2.*
2.6.13-1ubuntu3
2.6.14-1ubuntu1
2.6.14-2ubuntu1
2.6.14-2ubuntu1.1
2.6.19-0ubuntu0.25.10.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "2.6.19-0ubuntu0.25.10.2",
            "binary_name": "openvpn"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "severity": [
                {
                    "type": "CVSS_V4",
                    "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2026-35058"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V4",
                    "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:L/SI:N/SA:L"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2026-40215"
        }
    ],
    "ecosystem": "Ubuntu:25.10"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8286-1.json"

Ubuntu:26.04:LTS / openvpn

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.7.0-1ubuntu1.1

Affected versions

2.*
2.6.14-2ubuntu1
2.6.15-1ubuntu1
2.7.0~rc5-1ubuntu5
2.7.0~rc6-1ubuntu1
2.7.0-1ubuntu1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "2.7.0-1ubuntu1.1",
            "binary_name": "openvpn"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "severity": [
                {
                    "type": "CVSS_V4",
                    "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2026-35058"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V4",
                    "score": "CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:L/SI:N/SA:L"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2026-40215"
        }
    ],
    "ecosystem": "Ubuntu:26.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8286-1.json"