CVE-2026-54233

MEDIUM

vLLM: OOM Denial of Service via Audio Decompression Bomb

Title source: cna
STIX 2.1

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.

References (2)

Core 2
Core References
X_Refsource_Misc x_refsource_misc
https://github.com/vllm-project/vllm/pull/44970

Scores

CVSS v3 6.5
EPSS 0.0042
EPSS Percentile 34.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-409
Status published
Products (3)
pypi/vllm 0 - 0.24.0PyPI
vllm/vllm < 0.23.1
vllm-project/vllm < 0.23.1rc0
Published Jun 22, 2026
Tracked Since Jun 23, 2026