GHSA-8737-QX52-HJFF vLLM: Derender endpoints decode caller-supplied GenerateResponse token IDs without output bounds

Summary The /v1/completions/derender and /v1/chat/completions/derender endpoints accept caller-supplied GenerateResponse objects and postprocess every nested choices.tokenids list directly. Unlike the normal render/generate path, derender does not enforce model context length, resolved maxtokens,...