DEBIAN-CVE-2026-44431

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Source
https://security-tracker.debian.org/tracker/CVE-2026-44431
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44431.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2026-44431
Upstream
Published
2026-05-13T16:16:57.150Z
Modified
2026-05-15T09:00:25.447995988Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
Summary
[none]
Details

urllib3 is an HTTP client library for Python. From 1.23 to before 2.7.0, cross-origin redirects followed from the low-level API via ProxyManager.connectionfromurl().urlopen(..., assertsamehost=False) still forward these sensitive headers. This vulnerability is fixed in 2.7.0.

References

Affected packages

Debian:11 / python-urllib3

Package

Name
python-urllib3
Purl
pkg:deb/debian/python-urllib3?arch=source&distro=bullseye

Affected ranges

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

Affected versions

1.*
1.26.5-1~exp1
1.26.5-1~exp1+deb11u1
1.26.5-1~exp1+deb11u2
1.26.5-1~exp1+deb11u3
1.26.8-1
1.26.9-1
1.26.12-1
1.26.16-1
1.26.17-1
1.26.18-1
1.26.18-2
2.*
2.0.7-1
2.0.7-2
2.2.3-1
2.2.3-2
2.2.3-3
2.2.3-4
2.3.0-1
2.3.0-2
2.3.0-3
2.5.0-1
2.5.0-1.1
2.5.0-2
2.6.3-1
2.6.3-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44431.json"

Debian:12 / python-urllib3

Package

Name
python-urllib3
Purl
pkg:deb/debian/python-urllib3?arch=source&distro=bookworm

Affected ranges

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

Affected versions

1.*
1.26.12-1
1.26.12-1+deb12u1
1.26.12-1+deb12u2
1.26.12-1+deb12u3
1.26.16-1
1.26.17-1
1.26.18-1
1.26.18-2
2.*
2.0.7-1
2.0.7-2
2.2.3-1
2.2.3-2
2.2.3-3
2.2.3-4
2.3.0-1
2.3.0-2
2.3.0-3
2.5.0-1
2.5.0-1.1
2.5.0-2
2.6.3-1
2.6.3-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44431.json"

Debian:13 / python-urllib3

Package

Name
python-urllib3
Purl
pkg:deb/debian/python-urllib3?arch=source&distro=trixie

Affected ranges

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

Affected versions

2.*
2.3.0-3
2.3.0-3+deb13u1
2.5.0-1
2.5.0-1.1
2.5.0-2
2.6.3-1
2.6.3-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44431.json"

Debian:14 / python-urllib3

Package

Name
python-urllib3
Purl
pkg:deb/debian/python-urllib3?arch=source&distro=forky

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
2.5.0-1.1
2.5.0-2
2.6.3-1
2.6.3-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-44431.json"