CVE-2021-33197

    Dashboard / Vulnerabilities / CVE-2021-33197

    CVE-2021-33197

    Published: 2 Aug 2021Last Modified: 9 Jul 2026

    Summary:

    Details: In Go before 1.15.13 and 1.16.x before 1.16.5, some configurations of ReverseProxy (from net/http/httputil) result in a situation where an attacker is able to drop arbitrary headers.

    References: https://groups.google.com/g/golang-announce, https://security.gentoo.org/glsa/202208-02, https://groups.google.com/g/golang-announce/c/RgCMkAEQjSI

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -ab7f8297f9734b24a43a942930258cda411f16a3

    Affected versions

    go1.16.4
    go1.16.3
    go1.16.2
    go1.16

    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-2021-33197 | CVE-DB