UBUNTU-CVE-2026-116748

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Source

https://ubuntu.com/security/CVE-2026-116748

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116748.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-116748

Upstream

CVE-2026-116748

Published

2026-10-26T22:16:00Z

Modified

2026-10-28T20:17:46Z

Severity

8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

Transmission 4.0.0 before 4.1.3 contains a permissive CORS vulnerability in handle_request() in rpc-server.cc that exposes the X-Transmission-Session-Id anti-CSRF token to any web origin. Malicious web pages can read the token from the 409 handshake response and replay it to issue RPC calls, enabling script-torrent-done execution, download-dir changes, or torrent and data deletion.

References

Affected packages

Ubuntu:16.04:LTS

transmission

Package

Name: transmission
Purl: pkg:deb/ubuntu/transmission?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.84-1ubuntu1

2.84-2

2.84-3

2.84-3ubuntu1

2.84-3ubuntu2

2.84-3ubuntu3

2.84-3ubuntu3.1

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "transmission",
            "binary_version":  "2.84-3ubuntu3.1"
        },
        {
            "binary_name":  "transmission-cli",
            "binary_version":  "2.84-3ubuntu3.1"
        },
        {
            "binary_name":  "transmission-common",
            "binary_version":  "2.84-3ubuntu3.1"
        },
        {
            "binary_name":  "transmission-daemon",
            "binary_version":  "2.84-3ubuntu3.1"
        },
        {
            "binary_name":  "transmission-gtk",
            "binary_version":  "2.84-3ubuntu3.1"
        },
        {
            "binary_name":  "transmission-qt",
            "binary_version":  "2.84-3ubuntu3.1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116748.json"

Ubuntu:18.04:LTS

transmission

Package

Name: transmission
Purl: pkg:deb/ubuntu/transmission?arch=source&distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.92-2ubuntu3

2.92-3ubuntu1

2.92-3ubuntu2

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "transmission",
            "binary_version":  "2.92-3ubuntu2"
        },
        {
            "binary_name":  "transmission-cli",
            "binary_version":  "2.92-3ubuntu2"
        },
        {
            "binary_name":  "transmission-common",
            "binary_version":  "2.92-3ubuntu2"
        },
        {
            "binary_name":  "transmission-daemon",
            "binary_version":  "2.92-3ubuntu2"
        },
        {
            "binary_name":  "transmission-gtk",
            "binary_version":  "2.92-3ubuntu2"
        },
        {
            "binary_name":  "transmission-qt",
            "binary_version":  "2.92-3ubuntu2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116748.json"

Ubuntu:20.04:LTS

transmission

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.94-2ubuntu1

2.94-2ubuntu2

2.94-2ubuntu3

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "transmission",
            "binary_version":  "2.94-2ubuntu3"
        },
        {
            "binary_name":  "transmission-cli",
            "binary_version":  "2.94-2ubuntu3"
        },
        {
            "binary_name":  "transmission-common",
            "binary_version":  "2.94-2ubuntu3"
        },
        {
            "binary_name":  "transmission-daemon",
            "binary_version":  "2.94-2ubuntu3"
        },
        {
            "binary_name":  "transmission-gtk",
            "binary_version":  "2.94-2ubuntu3"
        },
        {
            "binary_name":  "transmission-qt",
            "binary_version":  "2.94-2ubuntu3"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116748.json"

Ubuntu:22.04:LTS

transmission

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.00-1ubuntu2

3.00-1ubuntu5

3.00-2ubuntu1

3.00-2ubuntu2

3.00-2ubuntu2.1

3.00-2ubuntu2.2

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "transmission",
            "binary_version":  "3.00-2ubuntu2.2"
        },
        {
            "binary_name":  "transmission-cli",
            "binary_version":  "3.00-2ubuntu2.2"
        },
        {
            "binary_name":  "transmission-common",
            "binary_version":  "3.00-2ubuntu2.2"
        },
        {
            "binary_name":  "transmission-daemon",
            "binary_version":  "3.00-2ubuntu2.2"
        },
        {
            "binary_name":  "transmission-gtk",
            "binary_version":  "3.00-2ubuntu2.2"
        },
        {
            "binary_name":  "transmission-qt",
            "binary_version":  "3.00-2ubuntu2.2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116748.json"

Ubuntu:24.04:LTS

transmission

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.0.2-1ubuntu3

4.0.5-1

4.0.5-1build3

4.0.5-1build4

4.0.5-1build5

4.0.5-1ubuntu0.1

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "transmission",
            "binary_version":  "4.0.5-1ubuntu0.1"
        },
        {
            "binary_name":  "transmission-cli",
            "binary_version":  "4.0.5-1ubuntu0.1"
        },
        {
            "binary_name":  "transmission-common",
            "binary_version":  "4.0.5-1ubuntu0.1"
        },
        {
            "binary_name":  "transmission-daemon",
            "binary_version":  "4.0.5-1ubuntu0.1"
        },
        {
            "binary_name":  "transmission-gtk",
            "binary_version":  "4.0.5-1ubuntu0.1"
        },
        {
            "binary_name":  "transmission-qt",
            "binary_version":  "4.0.5-1ubuntu0.1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116748.json"

Ubuntu:26.04:LTS

transmission

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.1.0~beta2+dfsg-3ubuntu1

4.1.0~beta2+dfsg-3ubuntu2

4.1.0~beta4+dfsg-1ubuntu1

4.1.0~beta5+dfsg-1ubuntu1

4.1.0+dfsg-1ubuntu1

4.1.1+dfsg-1ubuntu1

4.1.1+dfsg-1ubuntu1.1

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "transmission",
            "binary_version":  "4.1.1+dfsg-1ubuntu1.1"
        },
        {
            "binary_name":  "transmission-cli",
            "binary_version":  "4.1.1+dfsg-1ubuntu1.1"
        },
        {
            "binary_name":  "transmission-common",
            "binary_version":  "4.1.1+dfsg-1ubuntu1.1"
        },
        {
            "binary_name":  "transmission-daemon",
            "binary_version":  "4.1.1+dfsg-1ubuntu1.1"
        },
        {
            "binary_name":  "transmission-gtk",
            "binary_version":  "4.1.1+dfsg-1ubuntu1.1"
        },
        {
            "binary_name":  "transmission-qt",
            "binary_version":  "4.1.1+dfsg-1ubuntu1.1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116748.json"

Ubuntu:26.10

transmission

Package

Name: transmission
Purl: pkg:deb/ubuntu/transmission?arch=source&distro=stonking

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

4.*

4.1.1+dfsg-1ubuntu1

4.1.2+dfsg-1ubuntu1

4.1.3+dfsg-1ubuntu1

4.1.3+dfsg-1ubuntu2

Ecosystem specific

{
    "binaries":  [
        {
            "binary_name":  "transmission",
            "binary_version":  "4.1.3+dfsg-1ubuntu2"
        },
        {
            "binary_name":  "transmission-cli",
            "binary_version":  "4.1.3+dfsg-1ubuntu2"
        },
        {
            "binary_name":  "transmission-common",
            "binary_version":  "4.1.3+dfsg-1ubuntu2"
        },
        {
            "binary_name":  "transmission-daemon",
            "binary_version":  "4.1.3+dfsg-1ubuntu2"
        },
        {
            "binary_name":  "transmission-gtk",
            "binary_version":  "4.1.3+dfsg-1ubuntu2"
        },
        {
            "binary_name":  "transmission-qt",
            "binary_version":  "4.1.3+dfsg-1ubuntu2"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116748.json"