Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Docker | Engine | < 29.5.1 |
| Mobyproject | Moby | <= 28.5.2 |
| Mobyproject | Moby\/V2 | 2.0.0 |
Related Weaknesses (CWE)
References
- https://github.com/moby/moby/security/advisories/GHSA-rg2x-37c3-w2rhMitigationVendor Advisory
FAQ
What is CVE-2026-42306?
CVE-2026-42306 is a vulnerability with a CVSS score of 7.2 (HIGH). 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 d...
How severe is CVE-2026-42306?
CVE-2026-42306 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-42306?
Check the references section above for vendor advisories and patch information. Affected products include: Docker Engine, Mobyproject Moby, Mobyproject Moby\/V2.