---
id: CVE-2026-121541
title: >-
  Bake filesystem path entitlements approval can be skipped in some multi-target
  builds
summary: >-
  In Docker Buildx versions v0.19.0 through v0.38.0, an untrusted Bake
  definition that builds multiple targets together may expose files accessible
  to the Buildx client without the expected fs.read approval. Under certain
  conditions, files…
severity: medium
cvss: 5.6
cvssVector: 'CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-863
vendor: Docker
product: Docker Buildx
affected:
  - buildx >= 0.19.0 < 0.38.1
published: '2026-11-03'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T22:01:09.960Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-121541'
references:
  - url: 'https://github.com/docker/buildx/security/advisories/GHSA-xg6v-cv2h-2w5h'
tags:
  - cve.org
epss: 0.00112
epssPercentile: 0.01361
ingestedAt: '2026-11-05T20:33:06.530Z'
---

## Overview

In Docker Buildx versions v0.19.0 through v0.38.0, an untrusted Bake definition that builds multiple targets together may expose files accessible to the Buildx client without the expected fs.read approval. Under certain conditions, filesystem paths from some targets are not verified against the approved entitlements. Users who run untrusted Bake definitions may be affected. The issue is fixed in v0.38.1.

## Affected

- `buildx >= 0.19.0 < 0.38.1`

## Remediation

Upgrade Docker Buildx to v0.38.1 or later.

### Workarounds

Run only trusted Bake definitions until upgrading. Check that Bake definitions do not contain suspicious paths outside trusted directories.