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🔒 Prevent path traversal in process commands #198

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Merged
github-actions merged 1 commit into from
Sep 22, 2026
Merged

🔒 Prevent path traversal in process commands #198

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19 changes: 19 additions & 0 deletions stdlib/src/process.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,15 @@ impl StdlibRegistry {
));
}
let cmd = args[0].try_into_string()?;
if cmd.contains("..") || cmd.contains('\0') {
return Err(RuntimeError::new(
RuntimeErrorKind::InvalidOperation(
"Security policy violation: Path traversal or null bytes in command are denied".to_string(),
),
None,
None,
));
}
let args_list = match &args[1] {
RuntimeValue::List { items, .. } => {
let mut list = Vec::new();
Expand Down Expand Up @@ -115,6 +124,16 @@ impl StdlibRegistry {
}
};

if cmd.contains("..") || cmd.contains('\0') {
return Err(RuntimeError::new(
RuntimeErrorKind::InvalidOperation(
"Security policy violation: Path traversal or null bytes in command are denied".to_string(),
),
None,
None,
));
}

let parsed = shlex::split(&cmd).ok_or_else(|| {
RuntimeError::new(
RuntimeErrorKind::InvalidOperation(
Expand Down
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