CVE-2026-121541: medium-severity vulnerability in Docker Buildx
Bake filesystem path entitlements approval can be skipped in some multi-target builds
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.6epss 0.1%
In Docker Buildx versions v0.19.0 through v0.38.0, an untrusted Bake definition that builds multiple targets together may expose files accessible to the Buildx client without the expected fs.read approval. Under certain conditions, filesystem paths from some targets are not verified against the approved entitlements. Users who run untrusted Bake definitions may be affected. The issue is fixed in v0.38.1.
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
Affected products
Docker · Docker BuildxRelated CVEs — Docker Buildx
In the same product, most dangerous first.
CVE-2026-103433MEDIUMBake filesystem entitlement consent is skipped for certain secret and oci-layout definitionsEPSS 0.3%CVE-2026-121542LOWBake filesystem path entitlements approval can be skipped for path using basename prefixEPSS 0.1%CVE-2026-93325HIGHBake filesystem entitlement consent is skipped under --progress=rawjson in Docker BuildxEPSS 0.1%