USN-6473-1

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    USN-6473-1

    Published: 7 Nov 2023Last Modified: 25 Jun 2026

    Summary: python-urllib3 vulnerabilities

    Details: It was discovered that urllib3 didn't strip HTTP Authorization header on cross-origin redirects. A remote attacker could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2018-25091) It was discovered that urllib3 didn't strip HTTP Cookie header on cross-origin redirects. A remote attacker could possibly use this issue to obtain sensitive information. (CVE-2023-43804) It was discovered that urllib3 didn't strip HTTP body on status code 303 redirects under certain circumstances. A remote attacker could possibly use this issue to obtain sensitive information. (CVE-2023-45803)

    References: https://ubuntu.com/security/notices/USN-6473-1, https://ubuntu.com/security/CVE-2018-25091, https://ubuntu.com/security/CVE-2023-43804, https://ubuntu.com/security/CVE-2023-45803

    Affected packages

    Package

    Name: python-urllib3

    Purl: pkg:deb/ubuntu/python-urllib3?arch=source&distro=esm-infra%2Fxenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.13.1-2ubuntu0.16.04.4+esm1

    Affected versions

    1.11-1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High