Path Traversal in Moby Buildkit

CVE-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…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.005 (37.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-33748?
CVE-2026-33748 is a high-severity vulnerability in Moby Buildkit, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-03-27.
How severe is CVE-2026-33748?
High severity. CVSS v3 base score is 7.5 out of 10.