CVE-2026-39807 Client-supplied URI scheme trusted without transport verification in bandit

Reliance on Untrusted Inputs in a Security Decision vulnerability in mtrudel bandit allows unauthenticated transport-state spoofing on plaintext HTTP connections. 'Elixir.Bandit.Pipeline':determinescheme/2 in lib/bandit/pipeline.ex returns the client-supplied URI scheme verbatim, ignoring the...