# CVE-2026-24469: C++ HTTP Server has Critical Path Traversal Vulnerability in RequestHandler Allowing Arbitrary File Read

> An unauthenticated remote attacker can read arbitrary files from the server filesystem via path traversal in the HTTP request handler.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 Jan 2026
- **Updated:** 26 Jan 2026

## What is CVE-2026-24469?

CVE-2026-24469 is a high-severity path traversal vulnerability in frustratedProton http-server, published on 24 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

C++ HTTP Server is an HTTP/1.1 server built to handle client connections and serve HTTP requests. Versions 1.0 and below are vulnerable to Path Traversal via the RequestHandler::handleRequest method. This flaw allows an unauthenticated, remote attacker to read arbitrary files from the server's filesystem by crafting a malicious HTTP GET request containing ../ sequences. The application fails to sanitize the filename variable derived from the user-controlled URL path, directly concatenating it to the files_directory base path and enabling traversal outside the intended root. No patch was available at the time of publication.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2026-24469?


## How do I fix CVE-2026-24469?

No fix has been published for CVE-2026-24469 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-24469 being exploited?

There is no known exploitation of CVE-2026-24469 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-24469 and fix it if it is affected.

What it is: CVE-2026-24469 is a high-severity path traversal vulnerability in frustratedProton http-server, published on 24 Jan 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-24469 in the wild and no public exploit code.

Affected product: frustratedProton http-server. No package-level version data is available, so check the vendor advisory linked from the reference page.

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/CVE-2026-24469/ (Markdown: https://insights.sbomify.com/CVE-2026-24469/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-24469
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-24469
- OSV: https://osv.dev/vulnerability/CVE-2026-24469

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-24469/
Summaries are generated and may contain mistakes; the official description above is the record.