CVE-2026-15789 (GCVE-0-2026-15789)

Vulnerability from cvelistv5 – Published: 2026-07-21 16:10 – Updated: 2026-07-21 17:13
VLAI
Title
Malicious client can bypass destination directory validation on local sources upload
Summary
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.
Severity
6.9 (Medium)
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
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-21 17:09 UTC
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
Docker CNA under the mitre root
CNA scorecard B 88/100 over 33 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
moby BuildKit Affected: 0 , < 0.31.2 (semver)
guessed Create a notification for this product.
Credits
Kris Kennaway (KrisKennawayDD) of Datadog
Show details on NVD website
To clipboard 

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