CVE-2026-33747
BuildKit's Malicious frontend can cause file escape outside of storage root in github.com/moby/buildkit
8.4
HIGH
CVSS 3.1
EPSS 0.50%
描述
BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Prior to version 0.28.1, when using a custom BuildKit frontend, the frontend can craft an API message that causes files to be written outside of the BuildKit state directory for the execution context. The issue has been fixed in v0.28.1. The vulnerability requires using an untrusted BuildKit frontend set with `#syntax` or `--build-arg BUILDKIT_SYNTAX`. Using these options with a well-known frontend image like `docker/dockerfile` is not affected.
如何修補 CVE-2026-33747
要修補 CVE-2026-33747,請將受影響套件升級到下列已修補版本。
- —未列出修補版本
- —升級至 0.28.1 或更新版本
- —升級至 0.28.1 或更新版本
CVE-2026-33747 正在被利用嗎?
低 — EPSS 為 0.5%,目前沒有觀察到大規模利用活動。
受影響套件(3)
- from 0
- from 0, < 0.28.1
- from 0, < 0.28.1
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.4 | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |