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The CVE-2025-XXXX vulnerability in the Rust `shlex` crate (prior to v1.2.1) involves improper handling of unquoted and unescaped `{` and `\xa0` characters during command parsing. This flaw occurs due to insufficient input sanitization in the `quote` API, allowing attackers to inject malicious commands when untrusted input is processed. The issue stems from the library failing to properly escape or reject these characters, leading to potential shell command injection if the output is passed to a shell interpreter.
DailyCVE Form:
Platform: Rust crate
Version: <1.2.1
Vulnerability: Command injection
Severity: Low
Date: Jul 28, 2025
Prediction: Patch expected Aug 4, 2025
What Undercode Say:
$ cargo audit --id GHSA-r7qv-8r2h-pg27
$ shlex::quote("malicious{input}"); // Triggers vulnerability
How Exploit:
- Craft input containing `{` or `\xa0`
– Pass to `shlex::quote()`
– Execute in shell context
Protection from this CVE:
- Upgrade to `shlex` >=1.2.1
- Sanitize inputs manually
Impact:
- Shell command execution
- Low prevalence due to niche usage
Sources:
Reported By: github.com
Extra Source Hub:
Undercode
