CVE-2026-34054

Name: CVE-2026-34054
Creator: NVD / NIST
Published: 2026-03-31T03:15:58.593+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.71%

Last modified Jun 17, 2026

This CVE is reserved or awaiting analysis. Details will appear once published by NVD.

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.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.71%

49.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-427

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

Timeline

Published: Mar 31, 2026
Last Modified: Jun 17, 2026
Status: Awaiting Analysis

Are you affected by CVE-2026-34054?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST