CVE-2026-34054

EUVD-2026-17285
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
GitHub_MCNA
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 50.51%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
microsoftvcpkg
𝑥
< 3.6.1#3
CNA
Common Weakness Enumeration
References
https://github.com/microsoft/vcpkg/commit/5111afdf55cc1429d9951e4c7b02010e659346a9
https://github.com/microsoft/vcpkg/pull/50518
https://github.com/microsoft/vcpkg/security/advisories/GHSA-p322-v6vw-vrq9