USN-3407-1

    Dashboard / Vulnerabilities / USN-3407-1

    USN-3407-1

    Published: 30 Aug 2017Last Modified: 10 Feb 2026

    Summary: pyjwt vulnerability

    Details: It was discovered that a vulnerability in PyJWT doesn't check invalid_strings properly for some public keys. A remote attacker could take advantage of a key confusion to craft JWTs from scratch.

    References: https://ubuntu.com/security/notices/USN-3407-1, https://ubuntu.com/security/CVE-2017-11424

    Affected packages

    Package

    Name: pyjwt

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

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.3.0-1ubuntu0.1

    Affected versions

    1.0.0-0ubuntu1

    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