UBUNTU-CVE-2026-35540

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Source

https://ubuntu.com/security/CVE-2026-35540

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-35540.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-35540

Upstream

CVE-2026-35540

Published

2026-04-03T05:16:00Z

Modified

2026-05-20T16:25:37.971364114Z

Severity

5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N CVSS Calculator
6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

An issue was discovered in Roundcube Webmail 1.6.0 before 1.6.14. Insufficient Cascading Style Sheets (CSS) sanitization in HTML e-mail messages may lead to SSRF or Information Disclosure, e.g., if stylesheet links point to local network hosts.

References

Affected packages

Ubuntu:25.10

roundcube

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.6.10+dfsg-1

1.6.10+dfsg-2

1.6.11+dfsg-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "roundcube",
            "binary_version": "1.6.11+dfsg-1"
        },
        {
            "binary_name": "roundcube-core",
            "binary_version": "1.6.11+dfsg-1"
        },
        {
            "binary_name": "roundcube-mysql",
            "binary_version": "1.6.11+dfsg-1"
        },
        {
            "binary_name": "roundcube-pgsql",
            "binary_version": "1.6.11+dfsg-1"
        },
        {
            "binary_name": "roundcube-plugins",
            "binary_version": "1.6.11+dfsg-1"
        },
        {
            "binary_name": "roundcube-sqlite3",
            "binary_version": "1.6.11+dfsg-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-35540.json"

Ubuntu:26.04:LTS

roundcube

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.6.11+dfsg-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "roundcube",
            "binary_version": "1.6.11+dfsg-1"
        },
        {
            "binary_name": "roundcube-core",
            "binary_version": "1.6.11+dfsg-1"
        },
        {
            "binary_name": "roundcube-mysql",
            "binary_version": "1.6.11+dfsg-1"
        },
        {
            "binary_name": "roundcube-pgsql",
            "binary_version": "1.6.11+dfsg-1"
        },
        {
            "binary_name": "roundcube-plugins",
            "binary_version": "1.6.11+dfsg-1"
        },
        {
            "binary_name": "roundcube-sqlite3",
            "binary_version": "1.6.11+dfsg-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-35540.json"

Ubuntu:Pro:16.04:LTS

roundcube

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.1.1+dfsg.1-2

1.1.2+dfsg.1-5

1.1.3+dfsg.1-1

1.1.4+dfsg.1-1

1.2~beta+dfsg.1-0ubuntu1

1.2~beta+dfsg.1-0ubuntu1+esm1

1.2~beta+dfsg.1-0ubuntu1+esm2

1.2~beta+dfsg.1-0ubuntu1+esm3

1.2~beta+dfsg.1-0ubuntu1+esm4

1.2~beta+dfsg.1-0ubuntu1+esm5

1.2~beta+dfsg.1-0ubuntu1+esm6

1.2~beta+dfsg.1-0ubuntu1+esm7

1.2~beta+dfsg.1-0ubuntu1+esm8

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "roundcube",
            "binary_version": "1.2~beta+dfsg.1-0ubuntu1+esm8"
        },
        {
            "binary_name": "roundcube-core",
            "binary_version": "1.2~beta+dfsg.1-0ubuntu1+esm8"
        },
        {
            "binary_name": "roundcube-mysql",
            "binary_version": "1.2~beta+dfsg.1-0ubuntu1+esm8"
        },
        {
            "binary_name": "roundcube-pgsql",
            "binary_version": "1.2~beta+dfsg.1-0ubuntu1+esm8"
        },
        {
            "binary_name": "roundcube-plugins",
            "binary_version": "1.2~beta+dfsg.1-0ubuntu1+esm8"
        },
        {
            "binary_name": "roundcube-sqlite3",
            "binary_version": "1.2~beta+dfsg.1-0ubuntu1+esm8"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-35540.json"

Ubuntu:Pro:18.04:LTS

roundcube

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.3.0+dfsg.1-1

1.3.1+dfsg.1-1

1.3.3+dfsg.1-1

1.3.3+dfsg.1-2

1.3.6+dfsg.1-1

1.3.6+dfsg.1-1ubuntu0.1~esm1

1.3.6+dfsg.1-1ubuntu0.1~esm2

1.3.6+dfsg.1-1ubuntu0.1~esm3

1.3.6+dfsg.1-1ubuntu0.1~esm4

1.3.6+dfsg.1-1ubuntu0.1~esm5

1.3.6+dfsg.1-1ubuntu0.1~esm6

1.3.6+dfsg.1-1ubuntu0.1~esm7

1.3.6+dfsg.1-1ubuntu0.1~esm8

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "roundcube",
            "binary_version": "1.3.6+dfsg.1-1ubuntu0.1~esm8"
        },
        {
            "binary_name": "roundcube-core",
            "binary_version": "1.3.6+dfsg.1-1ubuntu0.1~esm8"
        },
        {
            "binary_name": "roundcube-mysql",
            "binary_version": "1.3.6+dfsg.1-1ubuntu0.1~esm8"
        },
        {
            "binary_name": "roundcube-pgsql",
            "binary_version": "1.3.6+dfsg.1-1ubuntu0.1~esm8"
        },
        {
            "binary_name": "roundcube-plugins",
            "binary_version": "1.3.6+dfsg.1-1ubuntu0.1~esm8"
        },
        {
            "binary_name": "roundcube-sqlite3",
            "binary_version": "1.3.6+dfsg.1-1ubuntu0.1~esm8"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-35540.json"

Ubuntu:Pro:20.04:LTS

roundcube

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.3.8+dfsg.1-2

1.3.10+dfsg.1-1

1.4.1+dfsg.1-2

1.4.2+dfsg.1-1

1.4.2+dfsg.1-2

1.4.3+dfsg.1-1

1.4.3+dfsg.1-1ubuntu0.1~esm1

1.4.3+dfsg.1-1ubuntu0.1~esm2

1.4.3+dfsg.1-1ubuntu0.1~esm3

1.4.3+dfsg.1-1ubuntu0.1~esm4

1.4.3+dfsg.1-1ubuntu0.1~esm5

1.4.3+dfsg.1-1ubuntu0.1~esm6

1.4.3+dfsg.1-1ubuntu0.1~esm7

1.4.3+dfsg.1-1ubuntu0.1~esm8

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "roundcube",
            "binary_version": "1.4.3+dfsg.1-1ubuntu0.1~esm8"
        },
        {
            "binary_name": "roundcube-core",
            "binary_version": "1.4.3+dfsg.1-1ubuntu0.1~esm8"
        },
        {
            "binary_name": "roundcube-mysql",
            "binary_version": "1.4.3+dfsg.1-1ubuntu0.1~esm8"
        },
        {
            "binary_name": "roundcube-pgsql",
            "binary_version": "1.4.3+dfsg.1-1ubuntu0.1~esm8"
        },
        {
            "binary_name": "roundcube-plugins",
            "binary_version": "1.4.3+dfsg.1-1ubuntu0.1~esm8"
        },
        {
            "binary_name": "roundcube-sqlite3",
            "binary_version": "1.4.3+dfsg.1-1ubuntu0.1~esm8"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-35540.json"

Ubuntu:Pro:22.04:LTS

roundcube

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.4.11+dfsg.1-4

1.5.0+dfsg.1-2

1.5.0+dfsg.1-2ubuntu0.1~esm1

1.5.0+dfsg.1-2ubuntu0.1~esm2

1.5.0+dfsg.1-2ubuntu0.1~esm3

1.5.0+dfsg.1-2ubuntu0.1~esm4

1.5.0+dfsg.1-2ubuntu0.1~esm5

1.5.0+dfsg.1-2ubuntu0.1~esm6

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "roundcube",
            "binary_version": "1.5.0+dfsg.1-2ubuntu0.1~esm6"
        },
        {
            "binary_name": "roundcube-core",
            "binary_version": "1.5.0+dfsg.1-2ubuntu0.1~esm6"
        },
        {
            "binary_name": "roundcube-mysql",
            "binary_version": "1.5.0+dfsg.1-2ubuntu0.1~esm6"
        },
        {
            "binary_name": "roundcube-pgsql",
            "binary_version": "1.5.0+dfsg.1-2ubuntu0.1~esm6"
        },
        {
            "binary_name": "roundcube-plugins",
            "binary_version": "1.5.0+dfsg.1-2ubuntu0.1~esm6"
        },
        {
            "binary_name": "roundcube-sqlite3",
            "binary_version": "1.5.0+dfsg.1-2ubuntu0.1~esm6"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-35540.json"

Ubuntu:Pro:24.04:LTS

roundcube

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.6.2+dfsg-1

1.6.4+dfsg-1

1.6.5+dfsg-1

1.6.6+dfsg-1

1.6.6+dfsg-2

1.6.6+dfsg-2ubuntu0.1

1.6.6+dfsg-2ubuntu0.1+esm1

1.6.6+dfsg-2ubuntu0.1+esm2

1.6.6+dfsg-2ubuntu0.1+esm3

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "roundcube",
            "binary_version": "1.6.6+dfsg-2ubuntu0.1+esm3"
        },
        {
            "binary_name": "roundcube-core",
            "binary_version": "1.6.6+dfsg-2ubuntu0.1+esm3"
        },
        {
            "binary_name": "roundcube-mysql",
            "binary_version": "1.6.6+dfsg-2ubuntu0.1+esm3"
        },
        {
            "binary_name": "roundcube-pgsql",
            "binary_version": "1.6.6+dfsg-2ubuntu0.1+esm3"
        },
        {
            "binary_name": "roundcube-plugins",
            "binary_version": "1.6.6+dfsg-2ubuntu0.1+esm3"
        },
        {
            "binary_name": "roundcube-sqlite3",
            "binary_version": "1.6.6+dfsg-2ubuntu0.1+esm3"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-35540.json"