GHSA-5WVV-Q5FV-2388

hyper-staticfile's location header incorporates user input, allowing open redirect

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.

Untrusted input controls a URL used for redirection, which can forward users to attacker-controlled sites. Typical impact: phishing and credential harvesting via a trusted domain.

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1. What is GHSA-5WVV-Q5FV-2388? GHSA-5WVV-Q5FV-2388 is a medium-severity open redirect vulnerability in hyper-staticfile (rust), affecting versions < 0.9.4. It is fixed in 0.9.4, 0.10.0-alpha.5. Untrusted input controls a URL used for redirection, which can forward users to attacker-controlled sites.
2. Which versions of hyper-staticfile are affected by GHSA-5WVV-Q5FV-2388? hyper-staticfile (rust) versions < 0.9.4 is affected.
3. Is there a fix for GHSA-5WVV-Q5FV-2388? Yes. GHSA-5WVV-Q5FV-2388 is fixed in 0.9.4, 0.10.0-alpha.5. Upgrade to this version or later.
4. Is GHSA-5WVV-Q5FV-2388 exploitable, and should I be worried? Whether GHSA-5WVV-Q5FV-2388 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
5. What actually determines whether GHSA-5WVV-Q5FV-2388 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
6. How do I fix GHSA-5WVV-Q5FV-2388?
   • Upgrade hyper-staticfile to 0.9.4 or later
   • Upgrade hyper-staticfile to 0.10.0-alpha.5 or later

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