UBUNTU-CVE-2026-43901

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Source
https://ubuntu.com/security/CVE-2026-43901
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43901.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-43901
Upstream
  • CVE-2026-43901
Published
2026-05-11T23:20:00Z
Modified
2026-05-20T16:26:05.061926965Z
Severity
  • 6.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Wireshark MCP is an MCP Server that turns tshark into a structured analysis interface, then layers in optional Wireshark suite utilities. In 1.1.5 and earlier, wireshark-mcp exposes a wiresharkexportobjects MCP tool that accepts an attacker-controlled destdir parameter and passes it to tshark's --export-objects flag with no mandatory path restriction. The path sandbox (alloweddirs) is None by default and only activates when the environment variable WIRESHARKMCPALLOWEDDIRS is explicitly set. In a default installation, any directory on the filesystem can be used as the export destination.

References

Affected packages

Ubuntu:24.04:LTS
wireshark

Package

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

Affected ranges

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

Affected versions

4.*
4.0.8-1
4.0.10-1
4.0.11-1
4.2.0-1
4.2.2-1
4.2.2-1.1build1
4.2.2-1.1build2
4.2.2-1.1build3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.2.2-1.1build3",
            "binary_name": "libwireshark-data"
        },
        {
            "binary_version": "4.2.2-1.1build3",
            "binary_name": "libwireshark17t64"
        },
        {
            "binary_version": "4.2.2-1.1build3",
            "binary_name": "libwiretap14t64"
        },
        {
            "binary_version": "4.2.2-1.1build3",
            "binary_name": "libwsutil15t64"
        },
        {
            "binary_version": "4.2.2-1.1build3",
            "binary_name": "tshark"
        },
        {
            "binary_version": "4.2.2-1.1build3",
            "binary_name": "wireshark"
        },
        {
            "binary_version": "4.2.2-1.1build3",
            "binary_name": "wireshark-common"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43901.json"
Ubuntu:25.10
wireshark

Package

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

Affected ranges

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

Affected versions

4.*
4.4.5-1
4.4.6-2
4.4.6-2build1
4.4.7-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.4.7-1",
            "binary_name": "libwireshark-data"
        },
        {
            "binary_version": "4.4.7-1",
            "binary_name": "libwireshark18"
        },
        {
            "binary_version": "4.4.7-1",
            "binary_name": "libwiretap15"
        },
        {
            "binary_version": "4.4.7-1",
            "binary_name": "libwsutil16"
        },
        {
            "binary_version": "4.4.7-1",
            "binary_name": "tshark"
        },
        {
            "binary_version": "4.4.7-1",
            "binary_name": "wireshark"
        },
        {
            "binary_version": "4.4.7-1",
            "binary_name": "wireshark-common"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43901.json"
Ubuntu:26.04:LTS
wireshark

Package

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

Affected ranges

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

Affected versions

4.*
4.4.7-1
4.6.0-1
4.6.1-2
4.6.2-3
4.6.3-1
4.6.4-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.6.4-1",
            "binary_name": "libwireshark-data"
        },
        {
            "binary_version": "4.6.4-1",
            "binary_name": "libwireshark19"
        },
        {
            "binary_version": "4.6.4-1",
            "binary_name": "libwiretap16"
        },
        {
            "binary_version": "4.6.4-1",
            "binary_name": "libwsutil17"
        },
        {
            "binary_version": "0.9.4-1",
            "binary_name": "stratoshark"
        },
        {
            "binary_version": "4.6.4-1",
            "binary_name": "tshark"
        },
        {
            "binary_version": "4.6.4-1",
            "binary_name": "wireshark"
        },
        {
            "binary_version": "4.6.4-1",
            "binary_name": "wireshark-common"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43901.json"
Ubuntu:Pro:14.04:LTS
wireshark

Package

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

Affected ranges

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

Affected versions

1.*
1.10.2-1
1.10.3-1
1.10.5-1ubuntu1
1.10.5-2
1.10.6-1
1.12.1+g01b65bf-4+deb8u11ubuntu0.14.04.1
2.*
2.6.3-1~ubuntu14.04.1
2.6.4-2~ubuntu14.04.1
2.6.5-1~ubuntu14.04.1
2.6.6-1~ubuntu14.04.0
2.6.8-1~ubuntu14.04.0~esm1
2.6.10-1~ubuntu14.04.0~esm1
2.6.10-1~ubuntu14.04.0~esm2
2.6.10-1~ubuntu14.04.0~esm3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.6.10-1~ubuntu14.04.0~esm3",
            "binary_name": "libwireshark-data"
        },
        {
            "binary_version": "2.6.10-1~ubuntu14.04.0~esm3",
            "binary_name": "libwireshark11"
        },
        {
            "binary_version": "2.6.10-1~ubuntu14.04.0~esm3",
            "binary_name": "libwiretap8"
        },
        {
            "binary_version": "2.6.10-1~ubuntu14.04.0~esm3",
            "binary_name": "libwscodecs2"
        },
        {
            "binary_version": "2.6.10-1~ubuntu14.04.0~esm3",
            "binary_name": "libwsutil9"
        },
        {
            "binary_version": "2.6.10-1~ubuntu14.04.0~esm3",
            "binary_name": "tshark"
        },
        {
            "binary_version": "2.6.10-1~ubuntu14.04.0~esm3",
            "binary_name": "wireshark"
        },
        {
            "binary_version": "2.6.10-1~ubuntu14.04.0~esm3",
            "binary_name": "wireshark-common"
        },
        {
            "binary_version": "2.6.10-1~ubuntu14.04.0~esm3",
            "binary_name": "wireshark-gtk"
        },
        {
            "binary_version": "2.6.10-1~ubuntu14.04.0~esm3",
            "binary_name": "wireshark-qt"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43901.json"
Ubuntu:Pro:16.04:LTS
wireshark

Package

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

Affected ranges

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

Affected versions

1.*
1.12.7+g7fc8978-1
1.12.8+g5b6e543-2
2.*
2.0.1+g59ea380-3build1
2.0.2+ga16e22e-1
2.2.6+g32dac6a-2ubuntu0.16.04
2.6.3-1~ubuntu16.04.1
2.6.4-2~ubuntu16.04.0
2.6.5-1~ubuntu16.04.0
2.6.6-1~ubuntu16.04.0
2.6.8-1~ubuntu16.04.0
2.6.10-1~ubuntu16.04.0
2.6.10-1~ubuntu16.04.0+esm1
2.6.10-1~ubuntu16.04.0+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.6.10-1~ubuntu16.04.0+esm2",
            "binary_name": "libwireshark-data"
        },
        {
            "binary_version": "2.6.10-1~ubuntu16.04.0+esm2",
            "binary_name": "libwireshark11"
        },
        {
            "binary_version": "2.6.10-1~ubuntu16.04.0+esm2",
            "binary_name": "libwiretap8"
        },
        {
            "binary_version": "2.6.10-1~ubuntu16.04.0+esm2",
            "binary_name": "libwscodecs2"
        },
        {
            "binary_version": "2.6.10-1~ubuntu16.04.0+esm2",
            "binary_name": "libwsutil9"
        },
        {
            "binary_version": "2.6.10-1~ubuntu16.04.0+esm2",
            "binary_name": "tshark"
        },
        {
            "binary_version": "2.6.10-1~ubuntu16.04.0+esm2",
            "binary_name": "wireshark"
        },
        {
            "binary_version": "2.6.10-1~ubuntu16.04.0+esm2",
            "binary_name": "wireshark-common"
        },
        {
            "binary_version": "2.6.10-1~ubuntu16.04.0+esm2",
            "binary_name": "wireshark-gtk"
        },
        {
            "binary_version": "2.6.10-1~ubuntu16.04.0+esm2",
            "binary_name": "wireshark-qt"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43901.json"
Ubuntu:Pro:18.04:LTS
wireshark

Package

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

Affected ranges

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

Affected versions

2.*
2.4.2-1
2.4.3-1
2.4.4-1
2.4.5-1
2.6.3-1~ubuntu18.04.1
2.6.4-2~ubuntu18.04.0
2.6.5-1~ubuntu18.04.0
2.6.6-1~ubuntu18.04.0
2.6.8-1~ubuntu18.04.0
2.6.10-1~ubuntu18.04.0
2.6.10-1~ubuntu18.04.0+esm1
2.6.10-1~ubuntu18.04.0+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.6.10-1~ubuntu18.04.0+esm2",
            "binary_name": "libwireshark-data"
        },
        {
            "binary_version": "2.6.10-1~ubuntu18.04.0+esm2",
            "binary_name": "libwireshark11"
        },
        {
            "binary_version": "2.6.10-1~ubuntu18.04.0+esm2",
            "binary_name": "libwiretap8"
        },
        {
            "binary_version": "2.6.10-1~ubuntu18.04.0+esm2",
            "binary_name": "libwscodecs2"
        },
        {
            "binary_version": "2.6.10-1~ubuntu18.04.0+esm2",
            "binary_name": "libwsutil9"
        },
        {
            "binary_version": "2.6.10-1~ubuntu18.04.0+esm2",
            "binary_name": "tshark"
        },
        {
            "binary_version": "2.6.10-1~ubuntu18.04.0+esm2",
            "binary_name": "wireshark"
        },
        {
            "binary_version": "2.6.10-1~ubuntu18.04.0+esm2",
            "binary_name": "wireshark-common"
        },
        {
            "binary_version": "2.6.10-1~ubuntu18.04.0+esm2",
            "binary_name": "wireshark-gtk"
        },
        {
            "binary_version": "2.6.10-1~ubuntu18.04.0+esm2",
            "binary_name": "wireshark-qt"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43901.json"
Ubuntu:Pro:20.04:LTS
wireshark

Package

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

Affected ranges

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

Affected versions

3.*
3.0.5-1
3.0.7-1
3.2.1-1
3.2.2-1
3.2.3-1
3.2.3-1ubuntu0.1~esm1
3.2.3-1ubuntu0.1~esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.2.3-1ubuntu0.1~esm2",
            "binary_name": "libwireshark-data"
        },
        {
            "binary_version": "3.2.3-1ubuntu0.1~esm2",
            "binary_name": "libwireshark13"
        },
        {
            "binary_version": "3.2.3-1ubuntu0.1~esm2",
            "binary_name": "libwiretap10"
        },
        {
            "binary_version": "3.2.3-1ubuntu0.1~esm2",
            "binary_name": "libwsutil11"
        },
        {
            "binary_version": "3.2.3-1ubuntu0.1~esm2",
            "binary_name": "tshark"
        },
        {
            "binary_version": "3.2.3-1ubuntu0.1~esm2",
            "binary_name": "wireshark"
        },
        {
            "binary_version": "3.2.3-1ubuntu0.1~esm2",
            "binary_name": "wireshark-common"
        },
        {
            "binary_version": "3.2.3-1ubuntu0.1~esm2",
            "binary_name": "wireshark-gtk"
        },
        {
            "binary_version": "3.2.3-1ubuntu0.1~esm2",
            "binary_name": "wireshark-qt"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43901.json"
Ubuntu:Pro:22.04:LTS
wireshark

Package

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

Affected ranges

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

Affected versions

3.*
3.4.7-1~exp1
3.4.9-1
3.6.2-1ubuntu1
3.6.2-2
3.6.2-2ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.6.2-2ubuntu0.1~esm1",
            "binary_name": "libwireshark-data"
        },
        {
            "binary_version": "3.6.2-2ubuntu0.1~esm1",
            "binary_name": "libwireshark15"
        },
        {
            "binary_version": "3.6.2-2ubuntu0.1~esm1",
            "binary_name": "libwiretap12"
        },
        {
            "binary_version": "3.6.2-2ubuntu0.1~esm1",
            "binary_name": "libwsutil13"
        },
        {
            "binary_version": "3.6.2-2ubuntu0.1~esm1",
            "binary_name": "tshark"
        },
        {
            "binary_version": "3.6.2-2ubuntu0.1~esm1",
            "binary_name": "wireshark"
        },
        {
            "binary_version": "3.6.2-2ubuntu0.1~esm1",
            "binary_name": "wireshark-common"
        },
        {
            "binary_version": "3.6.2-2ubuntu0.1~esm1",
            "binary_name": "wireshark-gtk"
        },
        {
            "binary_version": "3.6.2-2ubuntu0.1~esm1",
            "binary_name": "wireshark-qt"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-43901.json"