Homepage

h2@2.1.0 vulnerabilities

Pure-Python HTTP/2 protocol implementation

  • latest version

    4.3.0

  • latest non vulnerable version

    4.3.0

  • first published

    10 years ago

  • latest version published

    2 months ago

  • licenses detected

  • View h2 package health on Snyk Advisor  (opens in a new tab)
    • Go back to all versions of this package
    Report a new vulnerability Found a mistake?

    Direct Vulnerabilities

    Known vulnerabilities in the h2 package. This does not include vulnerabilities belonging to this package’s dependencies.

    Fix vulnerabilities automatically

    Snyk's AI Trust Platform automatically finds the best upgrade path and integrates with your development workflows. Secure your code at zero cost.

    Fix for free
    VulnerabilityVulnerable Version
    • M
    CRLF Injection

    h2 is a Pure-Python HTTP/2 protocol implementation

    Affected versions of this package are vulnerable to CRLF Injection due to insufficient validation in the request headers. This occurs when servers downgrade HTTP/2 requests to HTTP/1.1 without properly validating header names/values, enabling attackers to manipulate request boundaries and bypass security controls.

    How to fix CRLF Injection?

    Upgrade h2 to version 4.3.0 or higher.

    [,4.3.0)
    Go back to all versions of this package