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CVE-2026-94627— vLLM through 0.29.0 GPU KV Cache Leak via Mooncake Transfer ID Collision

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 Mooncake connector through 0.29.0 fails to properly manage GPU KV cache block ownership when concurrent child requests share a single transfer ID in prefill/decode disaggregated deployments. Attackers can trigger GPU memory exhaustion by submitting comple

CVSS 7.5 · High EPSS 0.45% · P38

影响版本矩阵 1

厂商产品 版本范围状态
vllm-project vllm ≤ 0.29.0 affected
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一、 漏洞 CVE-2026-94627 基础信息

漏洞信息

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Vulnerability Title
vLLM through 0.29.0 GPU KV Cache Leak via Mooncake Transfer ID Collision
来源: CVE Program / CVE List V5
Vulnerability Description
vLLM Mooncake connector through 0.29.0 fails to properly manage GPU KV cache block ownership when concurrent child requests share a single transfer ID in prefill/decode disaggregated deployments. Attackers can trigger GPU memory exhaustion by submitting completion requests with multiple prompts, causing orphaned KV cache blocks to accumulate until process restart and eventually preventing legitimate requests from executing.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
来源: CVE Program / CVE List V5
Vulnerability Type
在移除最后引用时对内存的释放不恰当(内存泄露)
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 ~ 0.29.0 -

二、漏洞 CVE-2026-94627 的公开POC

# POC 描述 源链接 神龙链接
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三、漏洞 CVE-2026-94627 的情报信息

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CVE-2026-94627 补丁与修复 (1)

CVE-2026-94627 其他参考 (1)

CVE-2026-94627 其他参考 (1)

同批安全公告 · vllm-project · 2026-09-21 · 共 6 条

CVE-2026-94624 7.5 HIGH vLLM through 0.29.0 Denial of Service via Unbounded P2P KV Offloading Sessions
CVE-2026-94623 7.5 HIGH vLLM through 0.29.0 Denial of Service via NIXL Multi-Prompt Assertion Failure
CVE-2026-94626 7.5 HIGH vLLM through 0.29.0 Memory Exhaustion via Unvalidated NIXL tp_size
CVE-2026-94622 7.5 HIGH vLLM through 0.29.0 Denial of Service via Incomplete NIXL KV Transfer Metadata
CVE-2026-94625 5.3 MEDIUM vLLM through 0.29.0 Resource Exhaustion via Ownerless Mooncake Transfer Placeholders

IV. Related Vulnerabilities

V. Comments for CVE-2026-94627

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