Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-34054— openssl on Windows built with openssldir set from the build machine (Uncontrolled Search Path Element)

Quick assessment

Affected
microsoft vcpkg
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

vcpkg是Microsoft开源的一个C/C++跨平台包管理工具。 vcpkg 3.6.1#3之前版本存在代码问题漏洞，该漏洞源于Windows版OpenSSL构建将openssldir设置为构建机器上的路径，可能导致该路径在客户机器上受到攻击。

CVSS 7.8 · High EPSS 0.63% · P48
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-34054

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
openssl on Windows built with openssldir set from the build machine (Uncontrolled Search Path Element)
Source: CVE Program / CVE List V5
Vulnerability Description
vcpkg is a free and open-source C/C++ package manager. Prior to version 3.6.1#3, vcpkg's Windows builds of OpenSSL set openssldir to a path on the build machine, making that path be attackable later on customer machines. This issue has been patched in version 3.6.1#3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对搜索路径元素未加控制
Source: CVE Program / CVE List V5
Vulnerability Title
vcpkg 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
vcpkg是Microsoft开源的一个C/C++跨平台包管理工具。 vcpkg 3.6.1#3之前版本存在代码问题漏洞，该漏洞源于Windows版OpenSSL构建将openssldir设置为构建机器上的路径，可能导致该路径在客户机器上受到攻击。
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
microsoft vcpkg < 3.6.1#3 -

II. Public POCs for CVE-2026-34054

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-34054

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-34054 (2)

IV. Related Vulnerabilities

Same vendor: microsoft
Same weakness: CWE-427

V. Comments for CVE-2026-34054

No comments yet

Leave a comment