CVE-2026-54233: Vllm

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

vLLM is an inference and serving engine for large language models (LLMs). Prior to 0.23.1rc0, vLLM's /v1/audio/transcriptions endpoint limits compressed upload size but not decoded PCM output. A 25MB OPUS file expands to ~14.9GB of float32 PCM at decode time. This vulnerability is fixed in 0.23.1rc0.

Affected products

• Vllm Vllm: before 0.23.1 (fixed in 0.23.1)

Published 2026-06-22. Last modified 2026-06-24.