CVE-2026-103433

Summary

Docker Buildx Bake does not request the expected fs.read approval for certain filesystem inputs. An untrusted Bake definition can expose a readable file through a pathless secret whose ID is interpreted as a client-side pathname, or consume a local OCI image layout outside the project after entitlement validation checks a different path representation. Users who run untrusted Bake definitions are affected.

Affected Software

Weaknesses

• CWE-862: CWE-862: Missing Authorization

Workarounds

Run only trusted Bake definitions until upgrading to v0.37.2 or later. Review Bake definitions for secrets without an explicit source and for local OCI layout contexts.

References

• https://github.com/docker/buildx/security/advisories/GHSA-p54p-jq4x-rc28
• https://github.com/docker/buildx/releases/tag/v0.37.2
• https://github.com/docker/buildx
• https://docs.docker.com/build/bake/reference/#targetentitlements

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