CVE-2026-39805

CVE-2026-39805 describes an HTTP request smuggling flaw in Elixir Bandit (bandit) due to Bandit.Headers:get_content_length/1 using List.keyfind/3. If a request carries two Content-Length headers with different values, Bandit may read the body using the first value and dispatch the remaining bytes...

EEF-CVE-2026-39805 CL.CL HTTP request smuggling via duplicate Content-Length in bandit

Summary Inconsistent Interpretation of HTTP Requests vulnerability in mtrudel bandit allows HTTP request smuggling via duplicate Content-Length headers. 'Elixir.Bandit.Headers':get\content\length/1 in lib/bandit/headers.ex uses List.keyfind/3, which returns only the first matching header. When a...

CVE-2026-42788 HTTP/2 frame size limit checked after body is buffered in bandit

Allocation of Resources Without Limits or Throttling vulnerability in mtrudel bandit allows unauthenticated memory exhaustion via oversized HTTP/2 frames. 'Elixir.Bandit.HTTP2.Frame':deserialize/2 in lib/bandit/http2/frame.ex checks the SETTINGSMAXFRAMESIZE limit only after pattern-matching...