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h2@3.1.1 vulnerabilities

Pure-Python HTTP/2 protocol implementation

  • latest version

    4.3.0

  • latest non vulnerable version

    4.3.0

  • first published

    9 years ago

  • latest version published

    9 days ago

  • licenses detected

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    Direct Vulnerabilities

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

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    VulnerabilityVulnerable Version
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    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)
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