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.
Metrics
Affected Vendors & Products
References
History
Tue, 21 Jul 2026 13:30:00 +0000
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ssvc
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Mon, 20 Jul 2026 22:30:00 +0000
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Moby
Moby buildkit |
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| Vendors & Products |
Moby
Moby buildkit |
Mon, 20 Jul 2026 20:00:00 +0000
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| 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. | |
| Title | WCOW cache mount source selector resolves NTFS junctions outside of cache root | |
| Weaknesses | CWE-59 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: Docker
Published:
Updated: 2026-07-21T12:40:56.055Z
Reserved: 2026-07-14T19:25:38.521Z
Link: CVE-2026-15788
Updated: 2026-07-21T12:40:21.632Z
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OpenCVE Enrichment
Updated: 2026-07-20T22:15:03Z