Detections
Analytics
SCA: security update for github.com/moby/buildkit (GHSA-4vrq-3vrq-g6gg)
high Tenable Cloud Security Plugin ID 439259
Description
There are packages installed that are affected by a vulnerability referenced in the following CVE:- 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. (CVE-2026-33748)
Solution
Update the github.com/moby/buildkit library and its related packages to version 0.28.1 or later.See Also
Plugin Details
Severity: High
ID: 439259
Version: Revision 1.8
Type: Local
Family: SCA Checks
Published: 3/26/2026
Updated: 7/2/2026
Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: Low
Score: 3
Percentile: 23.72
Vendor
Vendor Severity: High
CVSS v2
Risk Factor: High
Base Score: 7.8
Temporal Score: 5.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N
CVSS Score Source: CVE-2026-33748
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
CVSS v4
Risk Factor: High
Base Score: 8.2
Threat Score: 4.6
Threat Vector: CVSS:4.0/E:U
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Vulnerability Information
Exploit Ease: No known exploits are available
Patch Publication Date: 3/26/2026
Vulnerability Publication Date: 3/26/2026
Reference Information
CVE: CVE-2026-33748