CVE-2025-6587: Exposure of system environment variables in Docker Desktop diagnostic logs

Severity: medium (CVSS 5.2 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: 2025-07-03 · updated 2026-06-17
Weakness: CWE-532

Description

System environment variables are recorded in Docker Desktop diagnostic logs, when using shell auto-completion. This leads to unintentional disclosure of sensitive information such as api keys, passwords, etc. A malicious actor with read access to these logs could obtain secrets and further use them to gain unauthorized access to other systems. Starting with version 4.43.0 Docker Desktop no longer logs system environment variables as part of diagnostics log collection.

Affected products

Docker Desktop: before 4.43.0 — fixed in 4.43.0

How to fix

Upgrade to a fixed version: Docker Desktop 4.43.0. Check the vendor advisory for mitigations.

References

https://docs.docker.com/desktop/troubleshoot-and-support/troubleshoot/#check-the-logs

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