CVE-2026-18157
Received Received - Intake

Argument Injection in yggdrasil-worker-package-manager

Publication date: 2026-07-31

Last updated on: 2026-07-31

Assigner: Red Hat, Inc.

Description
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.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-07-31
Last Modified
2026-07-31
Generated
2026-07-31
AI Q&A
2026-07-31
EPSS Evaluated
N/A
NVD
CVE-2026-18157
EUVD
EUVD-2026-51380

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
redhatinsights yggdrasil-worker-package-manager to 0.2.3-4.el10 (inc)
redhatinsights yggdrasil-worker-package-manager 0.1.4
redhatinsights yggdrasil-worker-package-manager 0.2.4

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-88 The product constructs a string for a command to be executed by a separate component in another control sphere, but it does not properly delimit the intended arguments, options, or switches within that command string.

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This is an argument injection vulnerability in yggdrasil-worker-package-manager's APT backend. A local attacker with system access can exploit it by using package names starting with a hyphen, which apt-get misinterprets as command options. This could lead to remote code execution with root privileges.

Impact Analysis

If exploited, this vulnerability allows an attacker to gain full control of your system with root privileges. This means they could steal data, install malware, modify files, or disrupt services. The impact is severe as it compromises system integrity, confidentiality, and availability.

Compliance Impact

This vulnerability could lead to data breaches, violating GDPR and HIPAA requirements for data protection and confidentiality. Organizations may face legal penalties, fines, and reputational damage due to non-compliance resulting from system compromise.

Mitigation Strategies

Update the yggdrasil-worker-package-manager to the latest patched version immediately. Avoid using untrusted package sources and review package names for suspicious leading hyphens. Restrict local user access to prevent exploitation.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-18157. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart