CVE-2026-54233
vLLM: OOM Denial of Service via Audio Decompression Bomb
Description
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.
INFO
Published Date :
June 22, 2026, 10:10 p.m.
Last Modified :
June 22, 2026, 10:10 p.m.
Remotely Exploit :
No
Source :
GitHub_M
Solution
- Update vLLM to version 0.23.1rc0 or later.
- Monitor resource usage after updating.
- Implement upload size limits for audio endpoints.
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