UBUNTU-CVE-2026-38969

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Source
https://ubuntu.com/security/CVE-2026-38969
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-38969.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-38969
Upstream
Published
2026-07-03T00:00:00Z
Modified
2026-07-08T09:45:08.694030818Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

ruby webrick through v1.9.2 WEBrick reparses trailer Content-Length into canonical request state, enabling request smuggling.

References

Affected packages

Ubuntu:22.04:LTS / ruby-webrick

Package

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

Affected ranges

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

Affected versions

1.*
1.7.0-1
1.7.0-2
1.7.0-3
1.7.0-3ubuntu0.1
1.7.0-3ubuntu0.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-webrick",
            "binary_version": "1.7.0-3ubuntu0.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-38969.json"

Ubuntu:24.04:LTS / ruby-webrick

Package

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

Affected ranges

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

Affected versions

1.*
1.8.1-1
1.8.1-1ubuntu0.1
1.8.1-1ubuntu0.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-webrick",
            "binary_version": "1.8.1-1ubuntu0.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-38969.json"

Ubuntu:25.10 / ruby-webrick

Package

Name
ruby-webrick
Purl
pkg:deb/ubuntu/ruby-webrick?arch=source&distro=questing

Affected ranges

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

Affected versions

1.*
1.8.1-1ubuntu1
1.9.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-webrick",
            "binary_version": "1.9.1-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-38969.json"

Ubuntu:26.04:LTS / ruby-webrick

Package

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

Affected ranges

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

Affected versions

1.*
1.9.1-1
1.9.1-1build1
1.9.2-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "ruby-webrick",
            "binary_version": "1.9.2-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-38969.json"