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VULNERABILITIES

CVE-2026-52727 Details

Description

lxc-ci contains continuous integration and image-build scripts for LXC. Prior to the 2026-05-28 Arch Linux image publication, images built from images/archlinux.yaml retain the same pacman local-signing private key in /etc/pacman.d/gnupg and redistribute it to every container or virtual machine created from that image. An attacker who controls an HTTP package mirror or can intercept mirror traffic can use the shared pacman signing private key to sign modified packages that affected clients accept as trusted. Installing those packages permits arbitrary code execution as root on the client system. This issue is fixed in Arch Linux images published on or after 2026-05-28.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.2 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/lxc/lxc-ci/commit/082cb34ea19791a0424feafd9da67b94881ea40a [email protected]
https://github.com/lxc/lxc-ci/security/advisories/GHSA-4h59-f67g-5qxp [email protected]

Weakness Enumeration

CWE-IDCWE NameSource
CWE-321Use of Hard-coded Cryptographic Key[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-52727
NVD Published Date:
Sep 17, 2026
NVD Last Modified:
Sep 17, 2026
Source:
[email protected]
CVE-2026-52727 Details - Not Deferred