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CVE-2026-54233

vLLM: OOM Denial of Service via Audio Decompression Bomb

Published: Jun 22, 2026Updated: Jun 23, 2026 Sources: CVE List NVDCWE-409
6.5MEDIUM
NVD MITRE
EPSS Score
0.3%
Top 83.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-409

Affected Products

vllmvllm-project
Mixed
AI / ML / llm-serving-inference
vllm-projectoss-projectAI / MLaka vllm, vllm-project/vllm

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

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

Timeline

Published
Jun 22, 2026
Last Updated
Jun 23, 2026

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