UBUNTU-CVE-2026-44432

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Source
https://ubuntu.com/security/CVE-2026-44432
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44432.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-44432
Upstream
Published
2026-05-13T16:16:00Z
Modified
2026-05-22T22:15:06.027701868Z
Severity
  • 8.9 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H CVSS Calculator
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

urllib3 is an HTTP client library for Python. From 2.6.0 to before 2.7.0, urllib3 could decompress the whole response instead of the requested portion (1) during the second HTTPResponse.read(amt=N) call when the response was decompressed using the official Brotli library or (2) when HTTPResponse.drain_conn() was called after the response had been read and decompressed partially (compression algorithm did not matter here). These issues could cause urllib3 to fully decode a small amount of highly compressed data in a single operation. This could result in excessive resource consumption (high CPU usage and massive memory allocation for the decompressed data) on the client side. This vulnerability is fixed in 2.7.0.

References

Affected packages

Ubuntu:22.04:LTS
python-pip

Package

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

Affected ranges

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

Affected versions

20.*
20.3.4-4
21.*
21.3.1+dfsg-3
22.*
22.0.2+dfsg-1
22.0.2+dfsg-1ubuntu0.1
22.0.2+dfsg-1ubuntu0.2
22.0.2+dfsg-1ubuntu0.3
22.0.2+dfsg-1ubuntu0.4
22.0.2+dfsg-1ubuntu0.5
22.0.2+dfsg-1ubuntu0.6
22.0.2+dfsg-1ubuntu0.7

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-pip",
            "binary_version": "22.0.2+dfsg-1ubuntu0.7"
        },
        {
            "binary_name": "python3-pip-whl",
            "binary_version": "22.0.2+dfsg-1ubuntu0.7"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44432.json"
Ubuntu:24.04:LTS
python-pip

Package

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

Affected ranges

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

Affected versions

23.*
23.2+dfsg-1
23.3+dfsg-1
24.*
24.0+dfsg-1
24.0+dfsg-1ubuntu1
24.0+dfsg-1ubuntu1.1
24.0+dfsg-1ubuntu1.2
24.0+dfsg-1ubuntu1.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-pip",
            "binary_version": "24.0+dfsg-1ubuntu1.3"
        },
        {
            "binary_name": "python3-pip-whl",
            "binary_version": "24.0+dfsg-1ubuntu1.3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44432.json"
Ubuntu:25.10
python-pip

Package

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

Affected ranges

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

Affected versions

25.*
25.0+dfsg-1
25.1.1+dfsg-1
25.1.1+dfsg-1ubuntu1
25.1.1+dfsg-1ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-pip",
            "binary_version": "25.1.1+dfsg-1ubuntu2"
        },
        {
            "binary_name": "python3-pip-whl",
            "binary_version": "25.1.1+dfsg-1ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44432.json"
Ubuntu:26.04:LTS
python-pip

Package

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

Affected ranges

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

Affected versions

25.*
25.1.1+dfsg-1ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-pip",
            "binary_version": "25.1.1+dfsg-1ubuntu2"
        },
        {
            "binary_name": "python3-pip-whl",
            "binary_version": "25.1.1+dfsg-1ubuntu2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44432.json"
python-urllib3

Package

Name
python-urllib3
Purl
pkg:deb/ubuntu/python-urllib3?arch=source&distro=resolute

Affected ranges

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

Affected versions

2.*
2.3.0-3
2.5.0-1
2.5.0-1ubuntu1
2.5.0-1ubuntu2
2.6.3-1ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-urllib3",
            "binary_version": "2.6.3-1ubuntu1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44432.json"
Ubuntu:Pro:14.04:LTS
python-pip

Package

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

Affected ranges

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

Affected versions

1.*
1.4.1-2
1.5.4-1
1.5.4-1ubuntu1
1.5.4-1ubuntu3
1.5.4-1ubuntu4
1.5.4-1ubuntu4+esm1
1.5.4-1ubuntu4+esm2
1.5.4-1ubuntu4+esm3
1.5.4-1ubuntu4+esm4
1.5.4-1ubuntu4+esm5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python-pip",
            "binary_version": "1.5.4-1ubuntu4+esm5"
        },
        {
            "binary_name": "python-pip-whl",
            "binary_version": "1.5.4-1ubuntu4+esm5"
        },
        {
            "binary_name": "python3-pip",
            "binary_version": "1.5.4-1ubuntu4+esm5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44432.json"
python-urllib3

Package

Name
python-urllib3
Purl
pkg:deb/ubuntu/python-urllib3?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

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

Affected versions

1.*
1.6-2
1.7.1-1
1.7.1-1build1
1.7.1-1ubuntu0.1
1.7.1-1ubuntu3
1.7.1-1ubuntu4
1.7.1-1ubuntu4.1
1.7.1-1ubuntu4.1+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python-urllib3",
            "binary_version": "1.7.1-1ubuntu4.1+esm1"
        },
        {
            "binary_name": "python-urllib3-whl",
            "binary_version": "1.7.1-1ubuntu4.1+esm1"
        },
        {
            "binary_name": "python3-urllib3",
            "binary_version": "1.7.1-1ubuntu4.1+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44432.json"
Ubuntu:Pro:16.04:LTS
python-urllib3

Package

Name
python-urllib3
Purl
pkg:deb/ubuntu/python-urllib3?arch=source&distro=esm-infra%2Fxenial

Affected ranges

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

Affected versions

1.*
1.11-1
1.12-1
1.13.1-1
1.13.1-2
1.13.1-2ubuntu0.16.04.1
1.13.1-2ubuntu0.16.04.2
1.13.1-2ubuntu0.16.04.3
1.13.1-2ubuntu0.16.04.4
1.13.1-2ubuntu0.16.04.4+esm1
1.13.1-2ubuntu0.16.04.4+esm2
1.13.1-2ubuntu0.16.04.4+esm3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python-urllib3",
            "binary_version": "1.13.1-2ubuntu0.16.04.4+esm3"
        },
        {
            "binary_name": "python3-urllib3",
            "binary_version": "1.13.1-2ubuntu0.16.04.4+esm3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44432.json"
python-pip

Package

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

Affected ranges

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

Affected versions

1.*
1.5.6-7ubuntu1
1.5.6-7ubuntu2
8.*
8.0.2-7
8.0.3-1
8.0.3-2
8.1.0-1
8.1.0-2
8.1.1-1
8.1.1-2
8.1.1-2ubuntu0.1
8.1.1-2ubuntu0.2
8.1.1-2ubuntu0.4
8.1.1-2ubuntu0.6
8.1.1-2ubuntu0.6+esm2
8.1.1-2ubuntu0.6+esm3
8.1.1-2ubuntu0.6+esm4
8.1.1-2ubuntu0.6+esm5
8.1.1-2ubuntu0.6+esm6
8.1.1-2ubuntu0.6+esm8
8.1.1-2ubuntu0.6+esm10
8.1.1-2ubuntu0.6+esm11
8.1.1-2ubuntu0.6+esm12

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python-pip",
            "binary_version": "8.1.1-2ubuntu0.6+esm12"
        },
        {
            "binary_name": "python-pip-whl",
            "binary_version": "8.1.1-2ubuntu0.6+esm12"
        },
        {
            "binary_name": "python3-pip",
            "binary_version": "8.1.1-2ubuntu0.6+esm12"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44432.json"
Ubuntu:Pro:18.04:LTS
python-urllib3

Package

Name
python-urllib3
Purl
pkg:deb/ubuntu/python-urllib3?arch=source&distro=esm-infra%2Fbionic

Affected ranges

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

Affected versions

1.*
1.21.1-1
1.22-1
1.22-1ubuntu0.18.04.1
1.22-1ubuntu0.18.04.2
1.22-1ubuntu0.18.04.2+esm1
1.22-1ubuntu0.18.04.2+esm2
1.22-1ubuntu0.18.04.2+esm3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python-urllib3",
            "binary_version": "1.22-1ubuntu0.18.04.2+esm3"
        },
        {
            "binary_name": "python3-urllib3",
            "binary_version": "1.22-1ubuntu0.18.04.2+esm3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44432.json"
python-pip

Package

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

Affected ranges

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

Affected versions

9.*
9.0.1-2
9.0.1-2.3~ubuntu1
9.0.1-2.3~ubuntu1.18.04.1
9.0.1-2.3~ubuntu1.18.04.2
9.0.1-2.3~ubuntu1.18.04.3
9.0.1-2.3~ubuntu1.18.04.4
9.0.1-2.3~ubuntu1.18.04.5
9.0.1-2.3~ubuntu1.18.04.5+esm2
9.0.1-2.3~ubuntu1.18.04.5+esm3
9.0.1-2.3~ubuntu1.18.04.6
9.0.1-2.3~ubuntu1.18.04.6+esm1
9.0.1-2.3~ubuntu1.18.04.7
9.0.1-2.3~ubuntu1.18.04.7+esm1
9.0.1-2.3~ubuntu1.18.04.8
9.0.1-2.3~ubuntu1.18.04.8+esm1
9.0.1-2.3~ubuntu1.18.04.8+esm2
9.0.1-2.3~ubuntu1.18.04.8+esm4
9.0.1-2.3~ubuntu1.18.04.8+esm6
9.0.1-2.3~ubuntu1.18.04.8+esm7
9.0.1-2.3~ubuntu1.18.04.8+esm8

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python-pip",
            "binary_version": "9.0.1-2.3~ubuntu1.18.04.8+esm8"
        },
        {
            "binary_name": "python-pip-whl",
            "binary_version": "9.0.1-2.3~ubuntu1.18.04.8+esm8"
        },
        {
            "binary_name": "python3-pip",
            "binary_version": "9.0.1-2.3~ubuntu1.18.04.8+esm8"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44432.json"
Ubuntu:Pro:20.04:LTS
python-urllib3

Package

Name
python-urllib3
Purl
pkg:deb/ubuntu/python-urllib3?arch=source&distro=esm-infra%2Ffocal

Affected ranges

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

Affected versions

1.*
1.24.1-1ubuntu1
1.24.1-1ubuntu2
1.25.8-1
1.25.8-2
1.25.8-2ubuntu0.1
1.25.8-2ubuntu0.2
1.25.8-2ubuntu0.3
1.25.8-2ubuntu0.4
1.25.8-2ubuntu0.4+esm1
1.25.8-2ubuntu0.4+esm2
1.25.8-2ubuntu0.4+esm3
1.25.8-2ubuntu0.4+esm4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python3-urllib3",
            "binary_version": "1.25.8-2ubuntu0.4+esm4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44432.json"
python-pip

Package

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

Affected ranges

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

Affected versions

18.*
18.1-5
18.1-5build1
18.1-5ubuntu1
20.*
20.0.2-2
20.0.2-4
20.0.2-5
20.0.2-5ubuntu1
20.0.2-5ubuntu1.1
20.0.2-5ubuntu1.3
20.0.2-5ubuntu1.4
20.0.2-5ubuntu1.5
20.0.2-5ubuntu1.6
20.0.2-5ubuntu1.7
20.0.2-5ubuntu1.8
20.0.2-5ubuntu1.9
20.0.2-5ubuntu1.10
20.0.2-5ubuntu1.10+esm2
20.0.2-5ubuntu1.11
20.0.2-5ubuntu1.11+esm2
20.0.2-5ubuntu1.11+esm3
20.0.2-5ubuntu1.11+esm4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "python-pip-whl",
            "binary_version": "20.0.2-5ubuntu1.11+esm4"
        },
        {
            "binary_name": "python3-pip",
            "binary_version": "20.0.2-5ubuntu1.11+esm4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-44432.json"