openssl on Windows built with openssldir set from the build machine (Uncontrolled Search Path Element)

MITRE NVD CVE.ORG Print: PDF PDF

Summary

CVECVE-2026-34054
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-31 03:15:58 UTC
Updated2026-04-01 14:24:02 UTC
Descriptionvcpkg 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.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.000610000 probability, percentile 0.191800000 (date 2026-04-01)

Problem Types: CWE-427 | CWE-427 CWE-427: Uncontrolled Search Path Element

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Microsoft Vcpkg affected < 3.6.1#3 Not specified

References

ReferenceSourceLinkTags
github.com/microsoft/vcpkg/security/advisories/GHSA-p322-v6vw-vrq9 [email protected] github.com
github.com/microsoft/vcpkg/commit/5111afdf55cc1429d9951e4c7b02010e659346a9 [email protected] github.com
github.com/microsoft/vcpkg/pull/50518 [email protected] github.com
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