CVE-2026-94626— vLLM through 0.29.0 Memory Exhaustion via Unvalidated NIXL tp_size
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 through 0.29.0 fails to validate the tp_size parameter in kv_transfer_params on OpenAI-compatible completion endpoints, allowing attackers to allocate unbounded memory. Attackers can supply arbitrary tp_size values in prefill/decode disaggregated deployme
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-2026-94626 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 through 0.29.0 Memory Exhaustion via Unvalidated NIXL tp_size
来源: CVE Program / CVE List V5
Vulnerability Description
vLLM through 0.29.0 fails to validate the tp_size parameter in kv_transfer_params on OpenAI-compatible completion endpoints, allowing attackers to allocate unbounded memory. Attackers can supply arbitrary tp_size values in prefill/decode disaggregated deployments to exhaust memory and trigger kernel OOM-kill of the decode worker process.
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
未经控制的内存分配
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-2026-94626 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
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CVE-2026-94626 补丁与修复 (1)
CVE-2026-94626 其他参考 (3)
同批安全公告 · vllm-project · 2026-09-21 · 共 6 条
| CVE-2026-94627 | 7.5 HIGH | vLLM through 0.29.0 GPU KV Cache Leak via Mooncake Transfer ID Collision |
| 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-2026-94622 | 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
Same product: vllm
-
CVE-2026-94627
vLLM through 0.29.0 GPU KV Cache Leak via Mooncake Transfer -
CVE-2026-94625
vLLM through 0.29.0 Resource Exhaustion via Ownerless Moonca -
CVE-2026-94624
vLLM through 0.29.0 Denial of Service via Unbounded P2P KV O -
CVE-2026-94623
vLLM through 0.29.0 Denial of Service via NIXL Multi-Prompt -
CVE-2026-94622
vLLM through 0.29.0 Denial of Service via Incomplete NIXL KV
Same vendor: vllm-project
-
CVE-2026-94627
vLLM through 0.29.0 GPU KV Cache Leak via Mooncake Transfer -
CVE-2026-94625
vLLM through 0.29.0 Resource Exhaustion via Ownerless Moonca -
CVE-2026-94624
vLLM through 0.29.0 Denial of Service via Unbounded P2P KV O -
CVE-2026-94623
vLLM through 0.29.0 Denial of Service via NIXL Multi-Prompt -
CVE-2026-94622
vLLM through 0.29.0 Denial of Service via Incomplete NIXL KV
Same weakness: CWE-789
-
CVE-2026-96260
Mattermost server missing request body size limit on plugin -
CVE-2026-77322
SIPGO: DoS via unvalidated WebSocket frame length -
CVE-2026-58268
SIPGO: DoS via unvalidated Content-Length in the stream pars -
CVE-2026-59991
psd-tools: Uncontrolled memory allocation in psd-tools compo -
CVE-2026-62370
KubeEdge: Unbounded allocation in viaduct packer enables aut
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