DirectorySecurity AdvisoriesPricing
Sign in
Security Advisories

CVE-2026-42306

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-42306

Severity

7.2

High

CVSS V3

Eliminate CVEs with Chainguard hardened images

Build, ship, and run secure software with minimal, hardened container images — rebuilt from source daily and guarded under our industry-leading remediation SLA.

Start for free

Summary

Moby: Race condition in docker cp allows bind mount redirection to host path

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.

References

  • https://nvd.nist.gov/vuln/detail/CVE-2026-42306
  • https://github.com/advisories/GHSA-rg2x-37c3-w2rh
  • https://pkg.go.dev/vuln/GO-2026-5617
  • https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42306.json
  • https://github.com/moby/moby/security/advisories/GHSA-rg2x-37c3-w2rh

Affected packages

The trusted source for open source

Talk to an expert
PrivacyTerms

Product

Chainguard ContainersChainguard LibrariesChainguard VMsChainguard OS PackagesChainguard ActionsChainguard Agent SkillsIntegrationsPricing

Solutions

FedRAMPPCI DSSCMMC 2.0SOC 2Golden ImagesCVE RemediationPublic SectorStartups

Customers

Customer StoriesChainguard Reviews

Resources

Events & WebinarsSupply Chain Security 101Chainguard CoursesDocumentationTrust CenterChainguard Slack Community

Company

About UsBlogOpen Source LeadershipPartnersNewsroomCareersLegal
© 2026 Chainguard, Inc. All Rights Reserved.
Chainguard® and the Chainguard logo are registered trademarks of Chainguard, Inc. in the United States and/or other countries.
The other respective trademarks mentioned on this page are owned by the respective companies and use of them does not imply any affiliation or endorsement.