AIKIDO-2026-361750
github.com/moby/buildkit is vulnerable to Path Traversal
35
Low Risk
This Affects:
github.com/moby/buildkitTL;DR
A file operation in BuildKit's low-level build API resolves deletion paths without confining them to the build container rootfs. A crafted LLB message can make the delete action escape into the real host temporary directory. This allows removal of the contents of the host /tmp directory. The fix constrains the operation to the intended rootfs path.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and you allow untrusted parties to issue builds through a custom frontend that uses the low-level build API.
Background info
github.com/moby/buildkit is vulnerable to Path Traversal in versions 0.10.0 - 0.31.1.
How to fix this
Upgrade the github.com/moby/buildkit library to the patch version.
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