USN-4571-1

    Dashboard / Vulnerabilities / USN-4571-1

    USN-4571-1

    Published: 5 Oct 2020Last Modified: 27 Apr 2026

    Summary: ruby-rack-cors vulnerability

    Details: It was discovered that rack-cors did not properly handle relative file paths. An attacker could use this vulnerability to access arbitrary files.

    References: https://ubuntu.com/security/notices/USN-4571-1, https://ubuntu.com/security/CVE-2019-18978

    Affected packages

    Package

    Name: ruby-rack-cors

    Purl: pkg:deb/ubuntu/[email protected]+deb9u2build0.16.04.1?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -0.4.0-1+deb9u2build0.16.04.1

    Affected versions

    0.4.0-1
    0.4.0-1+deb9u1build0.16.04.1

    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
    USN-4571-1 | CVE-DB