CVE-2026-44431

EUVD-2026-30046
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.connection_from_url().urlopen(..., assert_same_host=False) still forward these sensitive headers. This vulnerability is fixed in 2.7.0.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 40%
Affected Products (NVD)
VendorProductVersion
pythonurllib3
1.23 ≤
𝑥
< 2.7.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
python-urllib3
bookworm
vulnerable
bookworm (security)
1.26.12-1+deb12u4
fixed
bullseye
vulnerable
bullseye (security)
1.26.5-1~exp1+deb11u4
fixed
forky
vulnerable
sid
vulnerable
trixie
vulnerable
trixie (security)
2.3.0-3+deb13u2
fixed
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
python-urllib3
suse enterprise sap 12
1.25.10-3.51.1
fixed
suse enterprise sap 12 SP3
1.25.10-3.51.1
fixed
suse enterprise sap 12 SP4
1.25.10-3.51.1
fixed
suse enterprise sap 12 SP5
1.25.10-3.51.1
fixed
suse enterprise server 12
1.25.10-3.51.1
fixed
suse enterprise server 12 SP3
1.25.10-3.51.1
fixed
suse enterprise server 12 SP4
1.25.10-3.51.1
fixed
suse enterprise server 12 SP5
1.25.10-3.51.1
fixed
python3-urllib3
suse enterprise sap 12
1.25.10-3.51.1
fixed
suse enterprise sap 12 SP3
1.25.10-3.51.1
fixed
suse enterprise sap 12 SP4
1.25.10-3.51.1
fixed
suse enterprise sap 12 SP5
1.25.10-3.51.1
fixed
suse enterprise sap 15 SP4
1.25.10-150300.4.27.1
fixed
suse enterprise sap 15 SP5
1.25.10-150300.4.27.1
fixed
suse enterprise sap 15 SP6
1.25.10-150300.4.27.1
fixed
suse enterprise server 12
1.25.10-3.51.1
fixed
suse enterprise server 12 SP3
1.25.10-3.51.1
fixed
suse enterprise server 12 SP4
1.25.10-3.51.1
fixed
suse enterprise server 12 SP5
1.25.10-3.51.1
fixed
suse enterprise server 15 SP4
1.25.10-150300.4.27.1
fixed
suse enterprise server 15 SP5
1.25.10-150300.4.27.1
fixed
suse enterprise server 15 SP6
1.25.10-150300.4.27.1
fixed
python311-urllib3
suse enterprise desktop 15 SP7
2.0.7-150400.7.30.1
fixed
suse enterprise sap 15 SP4
2.0.7-150400.7.30.1
fixed
suse enterprise sap 15 SP5
2.0.7-150400.7.30.1
fixed
suse enterprise sap 15 SP6
2.0.7-150400.7.30.1
fixed
suse enterprise sap 15 SP7
2.0.7-150400.7.30.1
fixed
suse enterprise server 15 SP4
2.0.7-150400.7.30.1
fixed
suse enterprise server 15 SP5
2.0.7-150400.7.30.1
fixed
suse enterprise server 15 SP6
2.0.7-150400.7.30.1
fixed
suse enterprise server 15 SP7
2.0.7-150400.7.30.1
fixed
python311-urllib3_1
suse enterprise desktop 15 SP7
1.26.18-150600.3.9.1
fixed
suse enterprise sap 15 SP6
1.26.18-150600.3.9.1
fixed
suse enterprise sap 15 SP7
1.26.18-150600.3.9.1
fixed
suse enterprise server 15 SP6
1.26.18-150600.3.9.1
fixed
suse enterprise server 15 SP7
1.26.18-150600.3.9.1
fixed
python36-urllib3
suse enterprise server 12 SP3
1.25.10-6.17.1
fixed
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
python3-urllib3
RHEL 9
0:1.26.5-8.el9_8
fixed
python3.12-urllib3
RHEL 9
0:1.26.19-3.el9_8
fixed
python3.14-urllib3
RHEL 9
0:2.6.3-2.el9_8
fixed
Amazon Linux logo
Amazon Linux Releases
Amazon Package
Release
python-urllib3
Amazon Linux 2
0:1.25.9-1.amzn2.0.10
fixed
python3-urllib3
Amazon Linux 2
0:1.25.6-2.amzn2.0.6
fixed
Amazon Linux 2023
0:1.25.10-5.amzn2023.0.7
fixed
Azure Linux logo
Azure Linux Releases
Azure Package
Release
python-urllib3
Azure Linux 3.0
0:2.0.7-5.azl3
fixed
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://github.com/urllib3/urllib3/security/advisories/GHSA-qccp-gfcp-xxvc
https://lists.debian.org/debian-lts-announce/2026/06/msg00040.html