EUVD-2026-76872
GHSA-m39m-2pqx-3vm2
Severity by source
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vLLM is a network-accessible inference API; attacker submits crafted video over the network with no credentials required by default.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
2DescriptionCVE.org
vLLM versions >=0.10.2 and <0.28.0 do not apply any audio decode-size or duration limit when extracting audio from video input for NanoNemotronVL models. In nano_nemotron_vl.py, _extract_audio_from_videos calls load_audio_pyav(BytesIO(video_bytes)) without the max_duration_s or max_decode_bytes parameters, so neither VLLM_MAX_AUDIO_DECODE_DURATION_S nor VLLM_MAX_AUDIO_DECODE_BYTES is enforced (unlike the direct audio upload path in AudioMediaIO). When a NanoNemotronVL model is served with use_audio_in_video=True, an attacker who supplies a small, highly compressed video as multimodal input can force the server to allocate gigabytes of memory during audio decoding, resulting in a denial of service. Fixed in vLLM 0.28.0.
AnalysisAI
Unbounded audio extraction in vLLM 0.10.2-0.27.x enables remote denial of service against NanoNemotronVL model deployments. The root cause is an asymmetric protection gap: _extract_audio_from_videos in nano_nemotron_vl.py calls load_audio_pyav without the size or duration guard parameters enforced on the direct audio upload path, bypassing the VLLM_MAX_AUDIO_DECODE_DURATION_S and VLLM_MAX_AUDIO_DECODE_BYTES environment variable limits entirely. …
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Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The vulnerable code path is only reachable when all three conditions are met simultaneously: (1) vLLM version is >=0.10.2 and <0.28.0; (2) a NanoNemotronVL model is actively loaded and serving requests; and (3) the server is started with `use_audio_in_video=True`, which is a non-default opt-in flag. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Real-world risk is moderate and tightly scoped by the deployment requirement. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade to vLLM 0.28.0, confirmed by the GitHub GHSA-936p-m5pv-vvjf advisory as the fixed release. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-400 – Uncontrolled Resource Consumption
View allSame technique Denial Of Service
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External POC / Exploit Code
Leaving vuln.today