CVE-2026-42306
7.2 · HIGHOverview
CVE-2026-42306 is a high-severity vulnerability affecting docker engine. It was published on June 12, 2026 and has a CVSS 3.1 base score of 7.2 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
Moby is an open source container framework. In Docker Engine prior to version 29.5.1, Docker Daemon versions 28.5.2 and prior, and Moby Daemon prior to version 2.0.0-beta.14, a race condition during docker cp mount setup allows a malicious container to redirect a bind mount target to an arbitrary host path, potentially overwriting host files or causing denial of service. This issue has been patched in Docker Engine version 29.5.1 and Moby Daemon version 2.0.0-beta.14.
Remediation
Check the references section for vendor advisories and patches from docker. Update engine to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| docker | engine | >= 0, < 29.5.1 | Affected |
| mobyproject | moby | 0 | Affected |
Frequently Asked Questions
What is CVE-2026-42306?
CVE-2026-42306 is a high-severity vulnerability affecting docker engine. It was published on June 12, 2026 and has a CVSS 3.1 base score of 7.2 (HIGH).
How severe is CVE-2026-42306?
This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-42306?
Check the references section for vendor advisories and patches from docker. Update engine to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-42306?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-42306 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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