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CVE-2026-15789

MEDIUM
6.9
CVSS 4.0
Description
A custom client can produce such an upload request to the BuildKit daemon that files can escape from the BuildKit-controlled state directory. The client needs to have valid permissions to access the BuildKit control API to issue builds, e.g., bypass authentication, etc.

Metadata

CVE ID
CVE-2026-15789
State
PUBLISHED
Assigner
Docker
Reserved
2026-07-14 19:27 UTC
Published
2026-07-21 16:10 UTC
Last updated
2026-07-21 17:13 UTC
Primary CWE
CWE-22
CWE-22: Improper Limitation of a Pathname to a Restricted Di…
Vendor / Product
moby / BuildKit
Sources
cve.org  ·  NVD

Severity & Metrics

6.9 MEDIUM CVSS 4.0
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC — CISA Coordinator
Exploitation
none
Automatable
no
Tech. Impact
partial
Affected products (1)
VendorProductPlatformVersions
moby BuildKit Linux,MacOS,Windows 0 < 0.31.2
Weakness (CWE)
CWESourceDescription
CWE-22 cna CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSS scores (1)
ScoreSeverityVersionSourceVector
6.9 MEDIUM 4.0 cna CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
References (1)
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