CVE-2026-121542
LOW
INFO
Priority: 0.00
BB Relevance:
29/100
Published: 2026-11-03
Modified: 2026-11-06
First seen: 2026-11-03
Status: active
Attack Surface
Low Complexity
No Auth
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
None
UI:
Active
S:
X
AT:
Present
VC:
Low
VI:
None
VA:
None
Description
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.
Weakness Classification (1)
Affected Software (2)
| Vendor | Product | Version |
|---|---|---|
| Docker | Docker Buildx | 0.19.0 < 0.38.1 |
| Docker | Docker Buildx | 0.19.0 < 0.38.1 |