CVE Explorer
CVE-2026-15788
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.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","platforms":["Windows"],"product":"BuildKit","vendor":"moby","versions":[{"lessThan":"0.31.2","status":"affected","version":"0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:e911cb226cde4d18b4234aaae4af003cef2cf01d021fad34cf6d04a470d41bef · sha256:40d666921eb2e3a7… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"LOCAL","baseScore":5.6,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"ACTIVE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpa…
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:e911cb226cde4d18b4234aaae4af003cef2cf01d021fad34cf6d04a470d41bef · sha256:40d666921eb2e3a7… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-59","description":"CWE-59: Improper Link Resolution Before File Access ('Link Following')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:e911cb226cde4d18b4234aaae4af003cef2cf01d021fad34cf6d04a470d41bef · sha256:40d666921eb2e3a7… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"tags":["vendor-advisory"],"url":"https://github.com/moby/buildkit/security/advisories/GHSA-388v-wmr2-g2v2"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:e911cb226cde4d18b4234aaae4af003cef2cf01d021fad34cf6d04a470d41bef · sha256:40d666921eb2e3a7… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.