CVE-2026-18157 HIGH

CVE-2026-18157: Yggdrasil-worker-package-manager: yggdrasil-worker-package-manager: remote code execution via apt argument injection

Vendor Redhatinsights
Product yggdrasil-worker-package-manager
Weakness CWE-88
Published July 31, 2026
Last update July 31, 2026

CVSS base score

7.8/10
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity High

CVSS vector

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

What the vulnerability does

01Description

A flaw was found in yggdrasil-worker-package-manager. A local attacker with existing access to the system could exploit an argument injection vulnerability in the APT backend. This allows specially crafted package names, which begin with a hyphen, to be misinterpreted as command options by apt-get. Successful exploitation could lead to remote code execution (RCE) with root privileges, enabling the attacker to fully compromise the system's integrity, confidentiality, and availability.

Key dates

02Disclosure timeline

July 31, 2026 CVE published