GO-2026-6839

    Dashboard / Vulnerabilities / GO-2026-6839

    GO-2026-6839

    Published: 5 Nov 2026Last Modified: 5 Nov 2026

    Summary: Echo: Rejected WebSocket upgrades can bypass Echo route-level access controls in github.com/labstack/echo

    Details: Echo: Rejected WebSocket upgrades can bypass Echo route-level access controls in github.com/labstack/echo

    References: https://github.com/labstack/echo/security/advisories/GHSA-cxf3-9h37-7rr8, https://github.com/labstack/echo/commit/1855061e572ae9dab727c811d8382f266bfbaaec, https://github.com/labstack/echo/commit/3fb0ba7e17645bb65611e2a08875d0a2f65c421f, https://github.com/labstack/echo/releases/tag/v4.16.1, https://github.com/labstack/echo/releases/tag/v5.4.1

    Affected packages

    Package

    Name: github.com/labstack/echo/v4

    Purl: pkg:golang/github.com/labstack/echo/v4

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 4.0.0
    Fixed -4.16.1

    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