https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-09-28T10:47:13.107538+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2018-20060 CVE-2018-20060 2026-09-28T10:47:13.143925+00:00

urllib3 before version 1.23 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.

 https://vulnerability.circl.lu/vuln/usn-3990-1 USN-3990-1 — python-urllib3 vulnerabilities 2026-09-28T10:47:13.144029+00:00

Affected: Ubuntu:16.04:LTS: python-urllib3, Ubuntu:18.04:LTS: python-urllib3

It was discovered that urllib3 incorrectly removed Authorization HTTP headers when handled cross-origin redirects. This could result in credentials being sent to unintended hosts. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-20060)

It was discovered that urllib3 incorrectly stripped certain characters from requests. A remote attacker could use this issue to perform CRLF injection. (CVE-2019-11236)

It was discovered that urllib3 incorrectly handled situations where a desired set of CA certificates were specified. This could result in certificates being accepted by the default CA certificates contrary to expectations. This issue only affected Ubuntu 18.04 LTS, Ubuntu 18.10, and Ubuntu 19.04. (CVE-2019-11324)