CVE intelligence

CVE-2026-75593

Vulnerability intelligence

Published Aug 19, 2026Sources checked Oct 28, 2026

7.2HIGHCVSS out of 10

What this means

Review the available evidence

CVE-2026-75593 and is rated High severity with a CVSS score of 7.2. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

What to do next

Remediation and response

Microsoft Security Response Center guidance

Vendor revision: Sep 10, 2026

See the Microsoft Security Update Guide for the update that applies to your product.

Vendor-listed releases

25.0.3-20

CISA KEVNot listedBased on the latest collected catalog

EPSS0.5%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-75593?

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.

Source: NVD