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CVE-2026-8936— Unbounded recursion in grpcfuse kernel module allows container to crash Docker Desktop VM

Quick assessment

Affected
Docker Docker Desktop
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.

Docker Desktop是美国Docker公司的一个基于容器技术的用于轻量化部署应用的桌面软件。该产品可提供桌面环境可支持在Linux/Windows/Mac OS系统上创建一个容器（轻量级虚拟机）并部署和运行应用程序，以及通过配置文件实现应用程序的自动化安装、部署和升级。 Docker Desktop 4.76.0之前版本存在安全漏洞，该漏洞源于grpcfuse内核模块中无界递归导致虚拟机内核崩溃，当容器在绑定挂载的主机文件夹中创建深层嵌套目录并触发目录项失效事件时可能触发。

AI Predicted 4.3 Difficulty: Moderate EPSS 0.15% · P4

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 1

VendorProduct Version RangeStatus
Docker Docker Desktop 4.33.0< 4.76.0 affected
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I. Basic Information for CVE-2026-8936

Vulnerability Information
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Vulnerability Title
Unbounded recursion in grpcfuse kernel module allows container to crash Docker Desktop VM
Source: CVE Program / CVE List V5
Vulnerability Description
Fixed a VM panic caused by unbounded recursion in the grpcfuse kernel module when a container created deeply nested directories on a bind-mounted host folder and triggered a dentry invalidation event. This issue has been fixed in Docker Desktop 4.76.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/R:U
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的递归
Source: CVE Program / CVE List V5
Vulnerability Title
Docker Desktop 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Docker Desktop是美国Docker公司的一个基于容器技术的用于轻量化部署应用的桌面软件。该产品可提供桌面环境可支持在Linux/Windows/Mac OS系统上创建一个容器（轻量级虚拟机）并部署和运行应用程序，以及通过配置文件实现应用程序的自动化安装、部署和升级。 Docker Desktop 4.76.0之前版本存在安全漏洞，该漏洞源于grpcfuse内核模块中无界递归导致虚拟机内核崩溃，当容器在绑定挂载的主机文件夹中创建深层嵌套目录并触发目录项失效事件时可能触发。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Docker Docker Desktop 4.33.0 ~ 4.76.0 -

II. Public POCs for CVE-2026-8936

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III. Intelligence Information for CVE-2026-8936

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Other References for CVE-2026-8936 (1)

IV. Related Vulnerabilities

Same product: Docker Desktop
Same vendor: Docker
Same weakness: CWE-674

V. Comments for CVE-2026-8936

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