cvedb.io
CVE-2026-33747
HIGH · CVSS 8.4
EPSS exploitation probability: 0%
Published 2026-03-27T01:16:21.330 · Last modified 2026-06-17T10:38:01.807

Summary

BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Prior to version 0.28.1, when using a custom BuildKit frontend, the frontend can craft an API message that causes files to be written outside of the BuildKit state directory for the execution context. The issue has been fixed in v0.28.1. The vulnerability requires using an untrusted BuildKit frontend set with `#syntax` or `--build-arg BUILDKIT_SYNTAX`. Using these options with a well-known frontend image like `docker/dockerfile` is not affected.

Affected products

mobyproject — buildkit

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.