UBUNTU-CVE-2018-25091

Advisory lineage Upstream: 1 Downstream: 2
Upstream
CVE-2018-25091
Published: 15 Oct 2023, 19:15
Last modified:04 Feb 2026, 02:53

Vulnerability Summary

Overall Risk (default)
low
24/100
CVSS Score
6.1 MEDIUM
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

15 Oct 2023, 19:15
Published
Vulnerability first disclosed
04 Feb 2026, 02:53
Last Modified
Vulnerability information updated

Description

urllib3 before 1.24.2 does not remove the authorization HTTP header when following a cross-origin redirect (i.e., a redirect that differs in host, port, or scheme). This can allow for credentials in the authorization header to be exposed to unintended hosts or transmitted in cleartext. NOTE: this issue exists because of an incomplete fix for CVE-2018-20060 (which was case-sensitive).

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Affected Systems

  • ubuntu•python-pip

    all | < 8.1.1-2ubuntu0.6+esm6 | < 9.0.1-2.3~ubuntu1.18.04.8+esm2

  • ubuntu•python-urllib3

    all | < 1.13.1-2ubuntu0.16.04.4+esm1 | < 1.22-1ubuntu0.18.04.2+esm1

References (7)