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granian vulnerabilities

Vulnerabilities published for granian in the last 30 days: 0. Listed in the KEV catalogue: 0.

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Vulnerabilities: 2

  1. CVE-2026-42545

    Medium · CVSS 5.9EPSS 0.27%Fix available

    Granian: DoS via WSGI response header panic

    Granian is a Rust HTTP server for Python applications. From 0.2.0 to 2.7.4, Granian aborts a worker process if a WSGI application returns an invalid HTTP response header name or value. The WSGI response conversion path uses .unwrap() on both the header name and header value constructors, so malformed output from the application becomes a process abort instead of a handled error. This vulnerability is fixed in 2.7.4.

    • Update to 2.7.4
    Published Updated
  2. CVE-2026-42544

    High · CVSS 7.5EPSS 0.39%Fix available

    Granian: Unauthenticated DoS via WebSocket subprotocol header panic

    Granian is a Rust HTTP server for Python applications. From 1.2.0 to 2.7.4, Granian aborts a worker process when an unauthenticated client sends a WebSocket upgrade request whose Sec-WebSocket-Protocol header contains non-ASCII bytes. The crash happens in Granian's WebSocket scope construction path, before the ASGI application is invoked. This vulnerability is fixed in 2.7.4.

    • Update to 2.7.4
    Published Updated

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