CVE-2026-121542: low-severity vulnerability in Docker Buildx
Bake filesystem path entitlements approval can be skipped for path using basename prefix
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 1.8epss 0.1%
In Docker Buildx versions v0.19.0 through v0.38.0, an untrusted Bake definition may expose files accessible to the Buildx client without the expected fs.read approval. Under certain conditions, paths under the same parent directory as the current working directory whose names use the working directory's basename as a prefix can skip the filesystem entitlement check. Exploitation requires specific matching filenames next to the current project directory. 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:L/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-2026-93325HIGHBake filesystem entitlement consent is skipped under --progress=rawjson in Docker BuildxEPSS 0.1%CVE-2026-121541MEDIUMBake filesystem path entitlements approval can be skipped in some multi-target buildsEPSS 0.1%