What is CVE-2025-67487?

CVE-2025-67487 is a medium-severity security vulnerability in static-web-server (rust), affecting versions <= 2.40.0. It is fixed in 2.40.1.

Which versions of static-web-server are affected by CVE-2025-67487?

static-web-server (rust) versions <= 2.40.0 is affected.

Is there a fix for CVE-2025-67487?

Yes. CVE-2025-67487 is fixed in 2.40.1. Upgrade to this version or later.

Is CVE-2025-67487 exploitable, and should I be worried?

Whether CVE-2025-67487 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.

What actually determines whether CVE-2025-67487 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.

CVE-2025-67487 in static-web-server | Intelligent Application Security

Q: Which versions of static-web-server are affected by CVE-2025-67487?

static-web-server (rust) versions <= 2.40.0 is affected.

Q: Is there a fix for CVE-2025-67487?

Yes. CVE-2025-67487 is fixed in 2.40.1. Upgrade to this version or later.

Q: Is CVE-2025-67487 exploitable, and should I be worried?

Whether CVE-2025-67487 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.

Q: What actually determines whether CVE-2025-67487 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.

Q: How do I fix CVE-2025-67487?

Upgrade static-web-server to 2.40.1 or later.

Summary

Symbolic links (symlinks) could be used to access files or directories outside the intended web root folder.

Details

SWS generally does not prevent symlinks from escaping the web server’s root directory. Therefore, if a malicious actor gains access to the web server’s root directory, they could create symlinks to access other files outside the designated web root folder either by URL or via the directory listing.

PoC

Serve a directory (web root) with SWS.
Create a symlink inside the web root that points to a file outside the web root.
e.g. ln -s escape.txt $HOME/.bashrc
Open http://localhost/escape.txt in your browser.
The file content will be served.

Impact

Any web server that runs with elevated privileges (e.g., root/administrator) and handles user-supplied file uploads is primarily impacted.

Affected versions

static-web-server (<= 2.40.0)

Security releases

static-web-server → 2.40.1 (rust)

Kodem intelligence

Severity tells you how bad this could be in the worst case. It does not tell you whether you are exposed. Exploitability and impact are functions of runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A vulnerable package can sit in your dependency tree and never run.

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. Kodem's runtime-powered SCA identifies whether this CVE is reachable in your applications.

See it in your environment

Remediation advice

Upgrade static-web-server to 2.40.1 or later to resolve this vulnerability.

Kodem Kai can prioritize this vulnerability in your dependency tree and generate a fix recommendation.

Frequently Asked Questions

What is CVE-2025-67487? CVE-2025-67487 is a medium-severity security vulnerability in static-web-server (rust), affecting versions <= 2.40.0. It is fixed in 2.40.1.
Which versions of static-web-server are affected by CVE-2025-67487? static-web-server (rust) versions <= 2.40.0 is affected.
Is there a fix for CVE-2025-67487? Yes. CVE-2025-67487 is fixed in 2.40.1. Upgrade to this version or later.
Is CVE-2025-67487 exploitable, and should I be worried? Whether CVE-2025-67487 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
What actually determines whether CVE-2025-67487 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.
How do I fix CVE-2025-67487? Upgrade static-web-server to 2.40.1 or later.

Other vulnerabilities in static-web-server

CVE-2025-67487 CVE-2024-32966