# GHSA-5wvv-q5fv-2388: hyper-staticfile's location header incorporates user input, allowing open redirect

> An attacker can craft URLs that redirect users to malicious domains, facilitating phishing attacks against users of the hyper-staticfile library.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 23 Dec 2022
- **Also known as:** RUSTSEC-2022-0072

## What is GHSA-5wvv-q5fv-2388?

GHSA-5wvv-q5fv-2388 is a vulnerability in hyper-staticfile, published on 23 Dec 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

When `hyper-staticfile` performs a redirect for a directory request (e.g. a request for `/dir` that redirects to `/dir/`), the `Location` header value was derived from user input (the request path), simply appending a slash. The intent was to perform an origin-relative redirect, but specific inputs allowed performing a scheme-relative redirect instead.

An attacker could craft a special URL that would appear to be for the correct domain, but immediately redirects to a malicious domain. Such a URL can benefit phishing attacks, for example an innocent looking link in an email.

## Which versions are affected by GHSA-5wvv-q5fv-2388?

5 open source packages ship an affected version, including hyper-staticfile.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `hyper-staticfile` | crates.io | All versions | 0.9.4 |
| `hyper-staticfile` | crates.io | All versions | 0.9.4 |
| `hyper-staticfile` | crates.io | From 0.0.0-0 | 0.9.4, 0.10.0-alpha.5 |
| `hyper-staticfile` | crates.io | From 0.10.0-alpha.1 | 0.10.0-alpha.5 |
| `hyper-staticfile` | crates.io | From 0.10.0-alpha.1 | 0.10.0-alpha.5 |

## How do I fix GHSA-5wvv-q5fv-2388?

Upgrade hyper-staticfile to a fixed version for your release line: 0.9.4 or 0.10.0-alpha.5.

## Is GHSA-5wvv-q5fv-2388 being exploited?

There is no known exploitation of GHSA-5wvv-q5fv-2388 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for GHSA-5wvv-q5fv-2388 and fix it if it is affected.

What it is: GHSA-5wvv-q5fv-2388 is a vulnerability in hyper-staticfile, published on 23 Dec 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of GHSA-5wvv-q5fv-2388 in the wild and no public exploit code.

Affected packages and fixed versions:
- hyper-staticfile (crates.io): affected all versions; fixed in 0.9.4
- hyper-staticfile (crates.io): affected all versions; fixed in 0.9.4
- hyper-staticfile (crates.io): affected from 0.0.0-0; fixed in 0.9.4, 0.10.0-alpha.5
- hyper-staticfile (crates.io): affected from 0.10.0-alpha.1; fixed in 0.10.0-alpha.5
- hyper-staticfile (crates.io): affected from 0.10.0-alpha.1; fixed in 0.10.0-alpha.5

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/GHSA-5wvv-q5fv-2388/ (Markdown: https://insights.sbomify.com/GHSA-5wvv-q5fv-2388/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/GHSA-5wvv-q5fv-2388

---
From sbomify Insights: https://insights.sbomify.com/GHSA-5wvv-q5fv-2388/
Summaries are generated and may contain mistakes; the official description above is the record.