ubuntu-cve-2018-20060
Vulnerability from osv_ubuntu
Published
2018-12-11 00:00
Modified
2025-09-08 16:45
Summary
Details

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.

Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
low
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "python-urllib3",
            "binary_version": "1.7.1-1ubuntu4.1+esm1"
          },
          {
            "binary_name": "python-urllib3-whl",
            "binary_version": "1.7.1-1ubuntu4.1+esm1"
          },
          {
            "binary_name": "python3-urllib3",
            "binary_version": "1.7.1-1ubuntu4.1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "python-urllib3",
        "purl": "pkg:deb/ubuntu/python-urllib3@1.7.1-1ubuntu4.1+esm1?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6-2",
        "1.7.1-1",
        "1.7.1-1build1",
        "1.7.1-1ubuntu0.1",
        "1.7.1-1ubuntu3",
        "1.7.1-1ubuntu4",
        "1.7.1-1ubuntu4.1",
        "1.7.1-1ubuntu4.1+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python-urllib3",
            "binary_version": "1.13.1-2ubuntu0.16.04.3"
          },
          {
            "binary_name": "python3-urllib3",
            "binary_version": "1.13.1-2ubuntu0.16.04.3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "python-urllib3",
        "purl": "pkg:deb/ubuntu/python-urllib3@1.13.1-2ubuntu0.16.04.3?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.13.1-2ubuntu0.16.04.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.11-1",
        "1.12-1",
        "1.13.1-1",
        "1.13.1-2",
        "1.13.1-2ubuntu0.16.04.1",
        "1.13.1-2ubuntu0.16.04.2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "python-urllib3",
            "binary_version": "1.22-1ubuntu0.18.04.1"
          },
          {
            "binary_name": "python3-urllib3",
            "binary_version": "1.22-1ubuntu0.18.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "python-urllib3",
        "purl": "pkg:deb/ubuntu/python-urllib3@1.22-1ubuntu0.18.04.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.22-1ubuntu0.18.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.21.1-1",
        "1.22-1"
      ]
    }
  ],
  "aliases": [],
  "details": "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.",
  "id": "UBUNTU-CVE-2018-20060",
  "modified": "2025-09-08T16:45:06Z",
  "published": "2018-12-11T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2018-20060"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/urllib3/urllib3/blob/master/CHANGES.rst"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3990-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2018-20060"
    }
  ],
  "related": [
    "USN-3990-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "low",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2018-20060"
  ]
}



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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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