CVE-2026-15793

High

Description

BuildKit custom frontends or clients using the raw low-level API can set git.checkoutbundle=true when checking out Git sources. If the Git source is malicious, this could lead to a crafted command invocation on the host.

SeverityHigh

CVSS7.5

Exploit probability—

ProductMobyproject Buildkit

PublishedJul 21, 2026

First seenJul 21, 2026

Weakness typeCWE-88CWE-88

How to fix

Update

mobyproject buildkit0.31.2 or later

Vendor advisories

github.com/moby/buildkit/security/advisories/GHSA-hw3h-2gp9-cxpv

Affected products

Product	Affected versions	Fixed in
mobyproject buildkit	0.30.0 ≤ v < 0.31.2	0.31.2

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