UBUNTU-CVE-2026-116695

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Source
https://ubuntu.com/security/CVE-2026-116695
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116695.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-116695
Upstream
Published
2026-10-27T21:18:00Z
Modified
2026-10-28T20:17:45Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Crass is a Ruby CSS parser that is compliant with the CSS Syntax Level 3 specification. Prior to 1.0.8, Crass incorrectly treats a closing parenthesis after an escaped backslash as escaped while consuming the remnants of a bad URL. Crass therefore keeps declarations, style rules, or at-rules inside a bad URL token even though a browser treats them as live CSS. A sanitizer that parses untrusted CSS with Crass and reserializes it without rejecting the bad URL can allow CSS used for UI redress, external resource loading, or CSS-based data exfiltration, but this issue does not enable script execution in modern browsers. This issue is fixed in version 1.0.8.

References

Affected packages

Ubuntu:16.04:LTS
ruby-crass

Package

Name
ruby-crass
Purl
pkg:deb/ubuntu/ruby-crass?arch=source&distro=xenial

Affected ranges

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

Affected versions

1.*
1.0.2-2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "ruby-crass",
            "binary_version":  "1.0.2-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116695.json"
Ubuntu:18.04:LTS
ruby-crass

Package

Name
ruby-crass
Purl
pkg:deb/ubuntu/ruby-crass?arch=source&distro=bionic

Affected ranges

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

Affected versions

1.*
1.0.2-2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "ruby-crass",
            "binary_version":  "1.0.2-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116695.json"
Ubuntu:20.04:LTS
ruby-crass

Package

Name
ruby-crass
Purl
pkg:deb/ubuntu/ruby-crass?arch=source&distro=focal

Affected ranges

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

Affected versions

1.*
1.0.2-2

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "ruby-crass",
            "binary_version":  "1.0.2-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116695.json"
Ubuntu:22.04:LTS
ruby-crass

Package

Name
ruby-crass
Purl
pkg:deb/ubuntu/ruby-crass?arch=source&distro=jammy

Affected ranges

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

Affected versions

1.*
1.0.2-2.1
1.0.2-3

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "ruby-crass",
            "binary_version":  "1.0.2-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116695.json"
Ubuntu:24.04:LTS
ruby-crass

Package

Name
ruby-crass
Purl
pkg:deb/ubuntu/ruby-crass?arch=source&distro=noble

Affected ranges

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

Affected versions

1.*
1.0.2-3

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "ruby-crass",
            "binary_version":  "1.0.2-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116695.json"
Ubuntu:26.04:LTS
ruby-crass

Package

Name
ruby-crass
Purl
pkg:deb/ubuntu/ruby-crass?arch=source&distro=resolute

Affected ranges

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

Affected versions

1.*
1.0.6-1ubuntu1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "ruby-crass",
            "binary_version":  "1.0.6-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116695.json"
Ubuntu:26.10
ruby-crass

Package

Name
ruby-crass
Purl
pkg:deb/ubuntu/ruby-crass?arch=source&distro=stonking

Affected ranges

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

Affected versions

1.*
1.0.6-1ubuntu1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "ruby-crass",
            "binary_version":  "1.0.6-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-116695.json"