USN-5812-1

    Dashboard / Vulnerabilities / USN-5812-1

    USN-5812-1

    Published: 19 Jan 2023Last Modified: 10 Feb 2026

    Summary: python-urllib3 vulnerability

    Details: It was discovered that urllib3 incorrectly handled certain characters in URLs. A remote attacker could possibly use this issue to cause urllib3 to consume resources, leading to a denial of service.

    References: https://ubuntu.com/security/notices/USN-5812-1, https://ubuntu.com/security/CVE-2021-33503

    Affected packages

    Package

    Name: python-urllib3

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=focal

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.25.8-2ubuntu0.2

    Affected versions

    1.24.1-1ubuntu1
    1.24.1-1ubuntu2

    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
    USN-5812-1 | CVE-DB