Docker Buildx up to 0.37.1 Bake Definition information disclosure

Summaryinfo

A vulnerability, which was classified as problematic, was found in Docker Buildx up to 0.37.1. Affected by this vulnerability is an unknown functionality of the component Bake Definition. Executing a manipulation can lead to information disclosure. This vulnerability is tracked as CVE-2026-103433. The attack can be launched remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Docker Buildx up to 0.37.1 and classified as problematic. This vulnerability affects some unknown functionality of the component Bake Definition. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. CVE summarizes:

Docker Buildx Bake does not request the expected fs.read approval for certain filesystem inputs. An untrusted Bake definition can expose a readable file through a pathless secret whose ID is interpreted as a client-side pathname, or consume a local OCI image layout outside the project after entitlement validation checks a different path representation. Users who run untrusted Bake definitions are affected.

The advisory is available at github.com. This vulnerability was named CVE-2026-103433 since 09/30/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

Upgrading to version 0.37.2 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Virtualization Software

Vendor

• Docker

Name

• Buildx

Version

• 0.37.0
• 0.37.1

Website

• Product: https://github.com/docker/buildx/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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