CVE-2026-55574 | vllm-project vLLM up to 0.23.x xgrammar Backend/outlines Backend structured_outputs.regex incorrect regex

A vulnerability labeled as problematic has been found in vllm-project vLLM up to 0.23.x. The impacted element is an unknown function of the file structured_outputs.regex of the component xgrammar Backend/outlines Backend. Such manipulation leads to incorrect regular expression.

This vulnerability is documented as CVE-2026-55574. The attack can be executed remotely. There is not any exploit available.VulDB Recent EntriesRead More