CVE-2026-69147— vLLM PyNvVideoCodec 显存预留绕过漏洞
一分钟漏洞结论
影响对象
vllm-project vllm
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
vLLM is an inference and serving engine for large language models. Prior to 0.28.0, request bodies for Chat Completions and Responses can set media_io_kwargs.video.video_backend to pynvvideocodec, and MediaConnector.fetch_video forwards that choice to VideoMed
可能的 ATT&CK 技术 1 AI
T1499 · Endpoint Denial of Service
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一、 漏洞 CVE-2026-69147 基础信息
漏洞信息
尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
vLLM: Request-selected PyNvVideoCodec GPU decode bypasses static VRAM reservation
来源: CVE Program / CVE List V5
Vulnerability Description
vLLM is an inference and serving engine for large language models. Prior to 0.28.0, request bodies for Chat Completions and Responses can set media_io_kwargs.video.video_backend to pynvvideocodec, and MediaConnector.fetch_video forwards that choice to VideoMediaIO even when startup configuration selected a software decoder. The engine's _reserve_mm_ipc_gpu_memory logic budgets decoder memory only from static configuration, so the request-selected VIDEO_LOADER_REGISTRY backend can create a CUDA context, decoder surfaces, and decoded-frame allocations that were not removed from the engine's KV-cache budget. An attacker able to submit video requests to a video-capable GPU deployment with PyNvVideoCodec installed can exhaust shared GPU memory, causing request failures, worker crashes, or denial of service. The first release containing the fix is version 0.28.0.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| vllm-project | vllm | < 0.28.0 | - |
|
二、漏洞 CVE-2026-69147 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-69147 补丁与修复 (3)
CVE-2026-69147 其他参考 (1)
同批安全公告 · vllm-project · 2026-09-16 · 共 4 条
| CVE-2026-57173 | 6.5 MEDIUM | vLLM 未认证音频解压炸弹拒绝服务漏洞 |
| CVE-2026-92220 | 5.3 MEDIUM | vLLM MoRIIO 资源消耗漏洞 |
| CVE-2026-92365 | 4.3 MEDIUM | vLLM thinking_budget_state.py 算法复杂度漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-69147
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