Reliance on Untrusted Inputs in a Security Decision

Property
Language
Severity
CWE	CWE-807: Reliance on Untrusted Inputs in a Security Decision
Confidence Level	High
Impact Level	Low
Likelihood Level	Low

Description#

Relying on std::env::args_os() for security decisions is unsafe because command-line arguments can be modified or spoofed by users. The first argument, often assumed to be the executable path, can contain arbitrary content and should not be trusted.

Impact#

If your application uses args_os for authentication, authorization, or other security checks, attackers could manipulate process arguments to bypass protections or mislead the application, potentially leading to unauthorized access or incorrect behavior.