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7.2High

CVE-2026-75593BuildKit: Malicious client can bypass destination directory validation on local sources upload

moby buildkit Published: (2 months ago)

Description

BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Prior to 0.31.2, a custom client can produce such an upload request to the BuildKit daemon that files can escape from the BuildKit-controlled state directory. The client needs to have valid permissions to access BuildKit control API to issue builds, eg., bypass authentication, etc. This issue is fixed in version 0.31.2.

Weakness (CWE): CWE-22

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

VendorProductVersions
moby buildkit < 0.31.2

References and patches

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