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CVE-2026-34054

HIGH CVSS 3.1: 7.8
Updated Mar 31, 2026
OpenSSL
Parameter Value
CVSS 7.8 (HIGH)
Fixed In 3.6.1
Type CWE-427 (Uncontrolled Search Path Element)
Vendor OpenSSL
Public PoC No

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.

Attack Parameters

Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v3.1