CVE-2026-121541
Published:November 03, 2026
Updated:November 04, 2026
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 Packages
https://github.com/docker/buildx.git (GITHUB):
Affected version(s) >=v0.19.0-rc1 <v0.38.2Fix Suggestion:
Update to version v0.38.2github.com/docker/buildx (GO):
Affected version(s) >=v0.19.0-rc1 <v0.38.2Fix Suggestion:
Update to version v0.38.2Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.6
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
NONE
User Interaction
ACTIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.5
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Incorrect Authorization
EPSS
Base Score:
0.11