---
cve: "CVE-2026-57173"
severity: "MEDIUM"
cvss: 6.5
epss: "6.9%"
vendor: "vllm-project"
kev: false
exploited: false
published: "2026-09-16 17:17:24"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-18T13:09:11+02:00"
---

# CVE-2026-57173

> 6.5 MEDIUM · 🧪 PoC

## Beschreibung

vLLM is an inference and serving engine for large language models. Prior to 0.24.0, the input_audio handling path for /v1/chat/completions calls AudioMediaIO.load_bytes or AudioMediaIO.load_file without passing VLLM_MAX_AUDIO_DECODE_DURATION_S to the shared audio decoder. An unauthenticated client can therefore submit a small compressed audio input that expands into a very large float32 PCM allocation, bypassing the duration guard already used by /v1/audio/transcriptions and causing an out-of-memory worker crash. Inline data URLs reach this path without being bounded by VLLM_AUDIO_FETCH_TIMEOUT. The issue affects deployments serving an audio-capable model, and authentication changes only the deployment-specific reachability. This issue is fixed in version 0.24.0.

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Keine | good |
| I Integrität | Keine | good |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- 3d20275bb4d434f53055c3c0b645fd8bb072965e (Commit)
- 217c64a976869883fcf0c52a8cf8bc3c954d285b (Commit)

## Referenzen

- <https://github.com/vllm-project/vllm/security/advisories/GHSA-hcwq-8wjf-3gcr>
- <https://github.com/vllm-project/vllm/pull/45908>
- <https://github.com/vllm-project/vllm/commit/3d20275bb4d434f53055c3c0b645fd8bb072965e>
- <https://github.com/vllm-project/vllm/releases/tag/v0.24.0>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-57173) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_