CVE-2021-27306

    Dashboard / Vulnerabilities / CVE-2021-27306

    CVE-2021-27306

    Published: 18 Mar 2021Last Modified: 10 Mar 2026

    Summary:

    Details: An improper access control vulnerability in the JWT plugin in Kong Gateway prior to 2.3.2.0 allows unauthenticated users access to authenticated routes without a valid token JWT.

    References: https://medium.com/%40sew.campos/cve-2021-27306-access-an-authenticated-route-on-kong-api-gateway-6ae3d81968a3, , https://docs.konghq.com/enterprise/changelog/#core-1

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    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
    CVE-2021-27306 | CVE-DB