UBUNTU-CVE-2026-44889

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Source
https://ubuntu.com/security/CVE-2026-44889
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44889.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-44889
Upstream
Downstream
Related
Published
2026-06-22T22:16:00Z
Modified
2026-09-16T14:02:43Z
Severity
  • 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

WebOb provides objects for HTTP requests and responses. Prior to 1.8.10, the normalization of the HTTP Location header during a redirect is vulnerable to an open redirect: WebOb joins the redirect target to the request URI using Python's urljoin, and since Python 3.10 the underlying urlsplit strips ASCII tab, carriage return, and newline characters before parsing, so a redirect target containing such characters can be reinterpreted as a protocol-relative URL whose authority is an attacker-controlled host. This bypasses the CVE-2024-42353 fix that escaped a leading double slash, allowing an attacker who influences the redirect location to send users to an arbitrary external site instead of the intended one. This vulnerability is fixed in 1.8.10.

References

Affected packages

Ubuntu:22.04:LTS
python-webob

Package

Name
python-webob
Purl
pkg:deb/ubuntu/python-webob?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:1.8.6-1.1ubuntu0.2

Affected versions

1:1.*
1:1.8.6-1.1
1:1.8.6-1.1ubuntu0.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "python3-webob",
            "binary_version": "1:1.8.6-1.1ubuntu0.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44889.json"
Ubuntu:24.04:LTS
python-webob

Package

Name
python-webob
Purl
pkg:deb/ubuntu/python-webob?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:1.8.7-1ubuntu0.1.24.04.2

Affected versions

1:1.*
1:1.8.6-3
1:1.8.7-1
1:1.8.7-1ubuntu0.1.24.04.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "python3-webob",
            "binary_version": "1:1.8.7-1ubuntu0.1.24.04.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44889.json"
Ubuntu:25.10
python-webob

Package

Name
python-webob
Purl
pkg:deb/ubuntu/python-webob?arch=source&distro=questing

Affected ranges

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

Affected versions

1:1.*
1:1.8.9-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-webob",
            "binary_version": "1:1.8.9-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44889.json"
Ubuntu:26.04:LTS
python-webob

Package

Name
python-webob
Purl
pkg:deb/ubuntu/python-webob?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:1.8.9-1ubuntu0.1

Affected versions

1:1.*
1:1.8.9-1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "python3-webob",
            "binary_version": "1:1.8.9-1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44889.json"
Ubuntu:Pro:16.04:LTS
python-webob

Package

Name
python-webob
Purl
pkg:deb/ubuntu/python-webob?arch=source&distro=esm-infra-legacy%2Fxenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.5.1-1ubuntu0.1~esm2

Affected versions

1.*
1.4.1-1
1.5.1-1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "python-webob",
            "binary_version": "1.5.1-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "python3-webob",
            "binary_version": "1.5.1-1ubuntu0.1~esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44889.json"
Ubuntu:Pro:18.04:LTS
python-webob

Package

Name
python-webob
Purl
pkg:deb/ubuntu/python-webob?arch=source&distro=esm-infra%2Fbionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:1.7.3-2ubuntu0.1~esm2

Affected versions

1:1.*
1:1.7.2-0ubuntu1
1:1.7.3-0ubuntu1
1:1.7.3-2fakesync1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "python-webob",
            "binary_version": "1:1.7.3-2ubuntu0.1~esm2"
        },
        {
            "binary_name": "python3-webob",
            "binary_version": "1:1.7.3-2ubuntu0.1~esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44889.json"
Ubuntu:Pro:20.04:LTS
python-webob

Package

Name
python-webob
Purl
pkg:deb/ubuntu/python-webob?arch=source&distro=esm-infra%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:1.8.5-2ubuntu0.1+esm1

Affected versions

1:1.*
1:1.8.5-1
1:1.8.5-1build1
1:1.8.5-2
1:1.8.5-2ubuntu0.1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "python3-webob",
            "binary_version": "1:1.8.5-2ubuntu0.1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44889.json"