🛡️ CVE-2026-44431 on Ubuntu — python-pip

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Distribution advisory

This page covers CVE-2026-44431 as tracked by Ubuntu, for the package python-pip. The fix is available in version 2.6.3-1ubuntu1.1; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity none, availability none.

Affected software

UBUNTU-CVE-2026-44431 is recorded against 2 packages.

  • python-pip
  • python-urllib3 (fixed in 2.6.3-1ubuntu1.1)

Timeline and source

Published on 13 May 2026 and last revised on 3 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

ubuntu.com (Report)
www.cve.org (Report)
github.com (Report)
ubuntu.com (Advisory)

CVE-2026-44431 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-05-13
Updated 2026-08-12
Modified 2026-06-03
Fix URL N/A

Affected Packages

Software From version Fixed in
python-pip — —
python-urllib3 — 2.6.3-1ubuntu1.1

Site Security Check

Is python-pip part of your stack?

UBUNTU-CVE-2026-44431 is rated CVSS 8.0 High. BotEraser scans your installation against known CVE records and tells you whether this vulnerability applies to the versions you actually run.

Scan My Site Free →

No credit card required  ·  Results in minutes

ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.