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7.8
CVE-2026-34054PATCHED
microsoft · vcpkg

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

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.

Affected Products

VendorProductVersions
microsoftvcpkg< 3.6.1#3

References

  • https://github.com/microsoft/vcpkg/security/advisories/GHSA-p322-v6vw-vrq9(x_refsource_CONFIRM)
  • https://github.com/microsoft/vcpkg/pull/50518(x_refsource_MISC)
  • https://github.com/microsoft/vcpkg/commit/5111afdf55cc1429d9951e4c7b02010e659346a9(x_refsource_MISC)

Related News (1 articles)

Tier C
VulDB1d ago
CVE-2026-34054 | Microsoft vcpkg up to 3.6.1#2 OpenSSL uncontrolled search path (GHSA-p322-v6vw-vrq9)
→ No new info (linked only)
CVSS 3.17.8 HIGH
VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA KEV❌ No
Actively exploited❌ No
Patch available
3.6.1#3
CWECWE-427
PublishedMar 31, 2026
Last enriched1d agov2
Trending Score29
Source articles1
Independent1
Info Completeness9/14
Missing: epss, kev, exploit, iocs, mitre_attack

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Verification

State: unverified
Confidence: 0%

Vulnerability Timeline

CVE Published
Mar 31, 2026
Discovered by ZDM
Mar 31, 2026
Updated: affectedVersions, severity, patchAvailable
Mar 31, 2026
Patch Available
Mar 31, 2026

Version History

v2
Last enriched 1d ago
v2Tier C1d ago

Updated affected versions to include 3.6.1#2, changed severity to MEDIUM, and noted that no exploit is available.

affectedVersionsseveritypatchAvailable
via VulDB
v11d ago

Initial creation