CVE-2026-41451

UAC (Unix-like Artifacts Collector) versions prior to 3.3.0 contain a command injection vulnerability in the user substitution logic within parse_artifact.sh where usernames and home directories from /etc/passwd are substituted directly into command strings without escaping before execution via eval. Attackers can inject shell metacharacters such as command substitution syntax or semicolons through crafted usernames or home directory paths in /etc/passwd entries to execute arbitrary commands on the analyst's host system.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/tclahr/uac/commit/2cc367d8ead388f05abd3cfb8af537788a124e72
https://github.com/tclahr/uac/pull/443
https://www.vulncheck.com/advisories/uac-command-injection-via-user-substitution-in-parse-artifact-sh

Configurations

No configuration.

History

15 Oct 2026, 19:10

Type	Values Removed	Values Added
Summary		(es) Las versiones de UAC (Unix-like Artifacts Collector) anteriores a 3.3.0 contienen una vulnerabilidad de inyección de comandos en la lógica de sustitución de usuarios dentro de parse_artifact.sh, donde los nombres de usuario y los directorios de inicio de /etc/p4ssd se sustituyen directamente en cadenas de comandos sin escapar antes de la ejecución a través de eval. Los atacantes pueden inyectar metacaracteres de shell como sintaxis de sustitución de comandos o puntos y coma a través de nombres de usuario o rutas de directorio de inicio manipulados en las entradas de /etc/p4ssd para ejecutar comandos arbitrarios en el sistema anfitrión del analista.

Information

Published : 2026-08-21 18:16

Updated : 2026-10-15 19:10

NVD link : CVE-2026-41451

Mitre link : CVE-2026-41451

CVE.ORG link : CVE-2026-41451

JSON object : View

Products Affected

No product.

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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