epi052/feroxbuster · error
Unable to parse path from url
Error message
Unable to parse path from url: {} What it means
After a successful remote-wordlist download, wrapped_main tries to derive a filename via response.url().path_segments(). If the URL has no parseable path segments (path_segments returns None, which happens for URLs whose path cannot be split, e.g. cannot-be-a-base URLs), it bails with this message. The scan cannot proceed without a filename to cache the wordlist under.
Solutions
- Use a conventional http(s) URL with a real path ending in a filename
- Download the wordlist locally and pass the file path instead
- Check redirect behavior (curl -L) to see the final URL's path
- Strip query/fragment oddities from the URL
Example fix
// before ferox -u https://t.com --wordlist data:text/plain,word // after curl -o words.txt https://example.com/lists/common.txt && ferox -u https://t.com --wordlist words.txt
Defensive patterns
Strategy: validation
Validate before calling
const u = new URL(wordlistUrl); if (!u.pathname || u.pathname === '/') throw new Error('wordlist URL has no path segments'); Type guard
function hasPathSegments(u) { try { return new URL(u).pathname.split('/').filter(Boolean).length > 0; } catch { return false; } } Prevention
- Use hierarchical http(s) URLs ending in a filename
- Avoid opaque/non-standard schemes as wordlist sources
- Check redirect destinations with curl -L
When it happens
Trigger: --wordlist pointing at a URL whose response URL lacks path segments — e.g. a non-hierarchical/cannot-be-a-base URL (data:, mailto:) or a redirect landing on a URL with an empty or unsegmentable path.
Common situations: Redirect chains that land on opaque URLs, misconfigured shorteners, or passing scheme-only/opaque URLs as the wordlist source.
Understand the failure class
Background: "Invalid URL" errors: why new URL(), URI.parse, and reqwest::Url reject your string — missing scheme, whitespace, and bad path format — this error's family across 39 libraries.
- Parsing and encoding errors: unexpected token, malformed input — why parsers reject input and how to find the real culprit.
Related errors
- [ ] Unable to download wordlist from url
- Unable to parse filename from url's path
- Could not get underlying wordlist
- Could not parse
- Did not find any words in
AI-assisted analysis of epi052/feroxbuster@1f595dab5c (2026-09-13).
Data as JSON: /api/errors/840f2e3c233b8082.
Report an issue: GitHub.
Appendix: source
Thrown at src/main.rs:276
for source in &config.wordlist {
if source.starts_with("http") {
// found a url scheme, attempt to download the wordlist
let response = config.client.get(source).send().await.context(format!(
"Unable to download wordlist from remote url: {source}"
))?;
if !response.status().is_success() {
// status code isn't a 200, bail
bail!(
"[{}] Unable to download wordlist from url: {}",
response.status().as_str(),
source
);
}
// attempt to get the filename from the url's path
let Some(mut path_segments) = response.url().path_segments() else {
bail!("Unable to parse path from url: {}", response.url());
};
let Some(filename) = path_segments.next_back() else {
bail!(
"Unable to parse filename from url's path: {}",
response.url().path()
);
};
let filename = filename.to_string();
// read the body and write it to disk, then read it back as a wordlist
let body = response.text().await?;
std::fs::write(&filename, body)?;
append_words_from_path(&filename, &mut words, &mut seen)?;
} else {
match append_words_from_path(source, &mut words, &mut seen) {View on GitHub (pinned to 1f595dab5c)