CVE-2026-15789
6.9
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
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| moby | BuildKit | 0 < 0.31.2 | affected |
Weaknesses
- CWE-22: CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Workarounds
Only use proper BuildKit clients (Docker Buildx, Buildctl) to issue builds. The issue only affects scenarios where you are running a BuildKit service with untrusted parties issuing builds.
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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