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CVE-2024-23651— BuildKit possible race condition with accessing subpaths from cache mounts

Quick assessment

Affected
moby buildkit
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

BuildKit是并发、高速缓存高效且与 Dockerfile 无关的构建器工具包。 BuildKit v0.12.4版本及之前版本存在竞争条件问题漏洞，该漏洞源于允许通过构建容器访问主机系统中的文件。

CVSS 8.7 · High EPSS 0.91% · P59

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2024-23651

Vulnerability Information
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Vulnerability Title
BuildKit possible race condition with accessing subpaths from cache mounts
Source: CVE Program / CVE List V5
Vulnerability Description
BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Two malicious build steps running in parallel sharing the same cache mounts with subpaths could cause a race condition that can lead to files from the host system being accessible to the build container. The issue has been fixed in v0.12.5. Workarounds include, avoiding using BuildKit frontend from an untrusted source or building an untrusted Dockerfile containing cache mounts with --mount=type=cache,source=... options.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用共享资源的并发执行不恰当同步问题(竞争条件)
Source: CVE Program / CVE List V5
Vulnerability Title
BuildKit 竞争条件问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
BuildKit是并发、高速缓存高效且与 Dockerfile 无关的构建器工具包。 BuildKit v0.12.4版本及之前版本存在竞争条件问题漏洞，该漏洞源于允许通过构建容器访问主机系统中的文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
moby buildkit < 0.12.5 -

II. Public POCs for CVE-2024-23651

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8698 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2024-23651

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Patches & Fixes for CVE-2024-23651 (1)

Vendor Advisories for CVE-2024-23651 (1)

Same Patch Batch · moby · 2024-01-31 · 4 CVEs total

CVE-2024-23652 10.0 CRITICAL BuildKit possible host system access from mount stub cleaner
CVE-2024-23653 9.8 CRITICAL BuildKit interactive containers API does not validate entitlements check
CVE-2024-23650 5.3 MEDIUM BuildKit possible panic when incorrect parameters sent from frontend

IV. Related Vulnerabilities

Same product: buildkit
Same vendor: moby
Same weakness: CWE-362

V. Comments for CVE-2024-23651

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