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

Severity: high (CVSS 8.2 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-02 · updated 2026-07-22
Weakness: CWE-674

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.

Affected products

Docker Desktop: from 4.33.0 before 4.76.0 — fixed in 4.76.0

How to fix

Upgrade to a fixed version: Docker Desktop 4.76.0. Check the vendor advisory for mitigations.

References

https://docs.docker.com/desktop/release-notes/#4760

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