CVE-2026-54233 | vLLM is an inference and serving engine for large language m… | CVSS 6.5 MEDIUM

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.

Metadata

CVE ID: CVE-2026-54233
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-06-12 16:25 UTC
Published: 2026-06-22 22:10 UTC
Last updated: 2026-06-22 22:10 UTC
Primary CWE: CWE-409
CWE-409: Improper Handling of Highly Compressed Data (Data A…
Vendor / Product: vllm-project / vllm
Sources: cve.org · NVD

Severity & Metrics

6.5 MEDIUM CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products (1)

Vendor	Product	Platform	Versions
vllm-project	vllm	—	< 0.23.1rc0

Weakness (CWE)

CWE	Source	Description
CWE-409	cna	CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)

CVSS scores (1)

Score	Severity	Version	Source	Vector
6.5	MEDIUM	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References (2)

https://github.com/vllm-project/vllm/security/advisories/GHSA-6pr9-rp53-2pmc https://github.com/vllm-project/vllm/security/advisories/GHSA-6pr9-rp53-2pmc
https://github.com/vllm-project/vllm/pull/44970 https://github.com/vllm-project/vllm/pull/44970