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CVE-2026-92220— vllm-project vLLM MoRIIO Acknowledgement moriio_connector.py MoRIIOWrapper._handle_release_message resource consumption

Quick assessment

Affected
vllm-project vLLM
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 vllm-project 的 vLLM 0.26.0/0.27.0 版本中发现了一个漏洞。受影响的文件是 中 MoRIIO 确认处理程序（MoRIIO Acknowledgement Handler）组件的 、 和 函数。通过操纵 或 参数，可能导致资源被大量消耗。攻击者可以远程发起此攻击。项目方已较早通过拉取请求（Pull Request）获知该问题，但尚未作出回应。

CVSS 5.3 · Medium EPSS 0.70% · P53

Possible ATT&CK Techniques 1 AI

T1074 · Data Staged

Affected Version Matrix 2

VendorProduct Version RangeStatus
vllm-project vLLM 0.26.0 affected
0.27.0 affected
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I. Basic Information for CVE-2026-92220

Vulnerability Information
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Vulnerability Title
vllm-project vLLM MoRIIO Acknowledgement moriio_connector.py MoRIIOWrapper._handle_release_message resource consumption
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability was found in vllm-project vLLM 0.26.0/0.27.0. Affected is the function MoRIIOConnectorScheduler.request_finished/MoRIIOConnectorWorker.get_finished/MoRIIOWrapper._handle_release_message of the file vllm/distributed/kv_transfer/kv_connector/v1/moriio/moriio_connector.py of the component MoRIIO Acknowledgement Handler. Performing a manipulation of the argument request_id/kv_transfer_params results in resource consumption. It is possible to initiate the attack remotely. The project was informed of the problem early through a pull request but has not reacted yet.
Source: 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:L
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
vllm-project vLLM 0.26.0 cpe:2.3:a:vllm-project:vllm:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-92220

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III. Intelligence Information for CVE-2026-92220

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Patches & Fixes for CVE-2026-92220 (1)

Vendor Pages for CVE-2026-92220 (1)

Same Patch Batch · vllm-project · 2026-09-16 · 4 CVEs total

CVE-2026-57173 6.5 MEDIUM vLLM: Unauthenticated audio decompression-bomb DoS in /v1/chat/completions
CVE-2026-69147 6.5 MEDIUM vLLM: Request-selected PyNvVideoCodec GPU decode bypasses static VRAM reservation
CVE-2026-92365 4.3 MEDIUM vllm-project vllm thinking_budget_state.py algorithmic complexity

IV. Related Vulnerabilities

Same product: vLLM
Same vendor: vllm-project
Same weakness: CWE-400