CVE-2026-33747

HIGH

8.4

Descripcion

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.

Detalles CVE

Puntuacion CVSS v3.18.4

SeveridadHIGH

Vector CVSSCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vector de ataqueLOCAL

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado3/27/2026

Ultima modificacion4/1/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

mobyproject:buildkit

Debilidades (CWE)

CWE-22

Referencias

https://github.com/moby/buildkit/releases/tag/v0.28.1(security-advisories@github.com)

https://github.com/moby/buildkit/security/advisories/GHSA-4c29-8rgm-jvjj(security-advisories@github.com)

Correlaciones IOC

Sin correlaciones registradas

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