Back to overview

CVE-2026-15788

MEDIUM
5.6
CVSS 4.0
Description
BuildKit's cache mount source= selector on Windows Container on Windows (WCOW) workers does not detect NTFS directory junctions placed inside the cache root. A build authored by an untrusted user on a WCOW-configured BuildKit daemon can read arbitrary host files reachable to the BuildKit daemon process.

Metadata

CVE ID
CVE-2026-15788
State
PUBLISHED
Assigner
Docker
Reserved
2026-07-14 19:25 UTC
Published
2026-07-20 19:12 UTC
Last updated
2026-07-20 19:12 UTC
Primary CWE
CWE-59
CWE-59: Improper Link Resolution Before File Access ('Link F…
Vendor / Product
moby / BuildKit
Sources
cve.org  ·  NVD

Severity & Metrics

5.6 MEDIUM CVSS 4.0
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Affected products (1)
VendorProductPlatformVersions
moby BuildKit Windows 0 < 0.31.2
Weakness (CWE)
CWESourceDescription
CWE-59 cna CWE-59: Improper Link Resolution Before File Access ('Link Following')
CVSS scores (1)
ScoreSeverityVersionSourceVector
5.6 MEDIUM 4.0 cna CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
References (1)
Back to overview