CVE-2026-33748
BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner.
Published Mar 27, 2026 · updated Jun 17, 2026 · mobyproject buildkit
BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Prior to version 0.28.1, insufficient validation of Git URL fragment subdir components may allow access to files outside the checked-out Git repository root. Possible access is limited to files on the same mounted filesystem. The issue has been fixed in version v0.28.1 The issue affects only builds that use Git URLs with a subpath component. As a workaround, avoid building Dockerfiles from untrusted sources or using the subdir component from an untrusted Git repository where the subdir component could point to a symlink.
Code
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Timeline
Detection, updates, and resolution for this record.
Mar 27, 2026 · NIST NVD
Detected
BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Prior to version 0.28.1, insufficient validation of Git URL fragment subdir components may allow access to files outside the checked-out Git repository root. Possible access is limited to files on the same mounted filesystem. The issue has been fixed in version v0.28.1 The issue a
Jun 17, 2026 · NIST NVD
Updated
BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Prior to version 0.28.1, insufficient validation of Git URL fragment subdir components may allow access to files outside the checked-out Git repository root. Possible access is limited to files on the same mounted filesystem. The issue has been fixed in version v0.28.1 The issue a
Affected
- cpe mobyproject/buildkitversion unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-33748
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-2026-33748
BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Prior to version 0.28.1, insufficient validation of Git URL fragment subdir components may allow access to files outside the checked-out Git repository root. Pos
nvd.nist.gov