DEBIAN-CVE-2026-44431

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2026-44431
Published: 13 May 2026, 16:16
Last modified:05 Jul 2026, 23:00

Vulnerability Summary

Overall Risk (default)
low
21/100
CVSS Score
5.3 MEDIUM
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

13 May 2026, 16:16
Published
Vulnerability first disclosed
05 Jul 2026, 23:00
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected Systems

  • debian•python-urllib3

    all | all | all | all | < 1.26.5-1~exp1+deb11u4 | < 1.26.12-1+deb12u4 | < 2.3.0-3+deb13u2 | < 2.7.0-1

References (1)