Medium [CVE-2026-103433] Docker Buildx Bake does not request the expected fs.read approval for certain filesystem inputs
This medium-severity Docker advisory covers CVE-2026-103433 affecting Docker Buildx.
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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.
- Docker Buildx before 0.37.2
Official advisory · high-confidence parse· fetched 4 days ago·verify at source
Mitigation
Upgrade to a fixed release: 0.37.2. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 4 days ago·verify at source
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