vLLM Vulnerable to Remote DoS via Special-Token Placeholders

Summary This report explains a Token Injection vulnerability in vLLM’s multimodal processing. Unauthenticated, text-only prompts that spell special tokens are interpreted as control. Image and video placeholder sequences supplied without matching data cause vLLM to index into empty grids during...

PT-2026-37318

Name of the Vulnerable Software and Affected Versions vLLM versions 0.6.1 through 0.19.x Description A Token Injection issue exists in the multimodal processing of vLLM. Unauthenticated, text-only prompts containing special tokens are interpreted as control commands. When image and video...