vLLM: OOM Denial of Service via Audio Decompression Bomb
Priority LOW 29CWE-409Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 3 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00422 36th percentileScored 2026-11-07
Fix Partial vllm (vllm-project): 0.23.1rc0vllm (PyPI): 0.24.0Red Hat: 3 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| vllm-project | vllm | before 0.23.1rc0 | 0.23.1rc0 | Patch available | CNA |
| — | vllm (PyPI) | before 0.24.0 | 0.24.0 | Patch available | GHSA-6pr9-rp53-2pmc |
- vllm Vendorvllm-project Affected before 0.23.1rc0 Fixed in 0.23.1rc0 Patch available CNA
- vllm (PyPI) Vendor— Affected before 0.24.0 Fixed in 0.24.0 Patch available GHSA-6pr9-rp53-2pmc
Remediation
- Fix · CNA vllm (vllm-project) Fixed in 0.23.1rc0
- Fix · GHSA-6pr9-rp53-2pmc vllm (PyPI) Fixed in 0.24.0 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat AI Inference Server | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux AI (RHEL AI) 3 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift AI (RHOAI) | Affected | No fix yet: Fix deferred |
Not affected: 1 product
- Red Hat OpenShift AI (RHOAI)
Timeline
- 2026-10-02 Threatist record created from CVE-2026-54233
- 2026-10-03 Alias added: GHSA-6pr9-rp53-2pmc
References
Advisory 3
More vllm-project vulnerabilities
- TI-2024-10229 Remote Code Execution in vllm-project/vllm CVSS 3.0CRITICAL 9.8
- TI-2024-08404 Remote Code Execution in vllm-project/vllm CVSS 3.1CRITICAL 9.8
- TI-2026-36017 vLLM: OpenAI auth bypass CVSS 3.1CRITICAL 9.1
- TI-2026-63056 vLLM before 0.28.0 Denial of Service via negative token ID CVSS 4.0HIGH 8.7
- TI-2026-04308 Hardcoded trust_remote_code=True in vllm-project/vllm Bypasses User Security Control CVSS 3.0HIGH 8.8
- TI-2026-39137 vLLM: Remote DoS in vLLM via Invalid Recovered Token Reinjection CVSS 3.1HIGH 7.5
Sources
- CVE-2026-54233 · CVE Program
- CVE-2026-54233 · NVD
- FIRST EPSS
- GHSA-6pr9-rp53-2pmc · GitHub Advisory Database · CC BY 4.0
- CVE-2026-54233 · Red Hat security data · CC BY 4.0
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