RUSTSEC-2021-0126: 
Rust vulnerability analysis and mitigation

A directory traversal vulnerability was discovered in the rust-embed crate versions prior to 6.3.0. The vulnerability, tracked as RUSTSEC-2021-0126 and CVE-2021-45712, was identified on December 26, 2021. The issue specifically affects applications using rust-embed in debug mode, where path traversal attacks could be possible (RustSec Advisory).

The vulnerability allows for directory traversal attacks through the use of '../' path sequences when the application is running in debug mode. This could potentially allow attackers to access files outside of the intended directory structure. A proof of concept demonstrates that by using the appropriate number of '../' sequences, an attacker could access sensitive system files such as '/etc/passwd' (GitHub Issue).

When exploited, this vulnerability could allow unauthorized access to files outside of the intended directory structure, potentially exposing sensitive system files and information. The impact is particularly concerning in debug mode deployments where an attacker could traverse the directory structure to read arbitrary files on the system (RustSec Advisory).

The vulnerability has been fixed in rust-embed version 6.3.0 and later. Users are strongly advised to upgrade to the latest version to address this security issue. For those unable to upgrade immediately, it is recommended to ensure that applications using rust-embed are not deployed in debug mode (RustSec Advisory).