# CVE-2026-6410

> Vulnerability · severity: **MEDIUM** (CVSS 5.3).

## Description

@fastify/static versions 8.0.0 through 9.1.0 allow path traversal when directory listing is enabled via the list option. The dirList.path() function resolves directories outside the configured static root using path.join() without a containment check. A remote unauthenticated attacker can obtain directory listings for arbitrary directories accessible to the Node.js process, disclosing directory and file names. File contents are not disclosed. Upgrade to @fastify/static 9.1.1 to fix this issue. As a workaround, disable directory listing by removing the list option from the plugin configuration.

## Key facts

- **CVE ID:** CVE-2026-6410
- **Published:** 2026-04-16
- **CVSS severity:** MEDIUM
- **CVSS base score:** 5.3
- **CWE codes:** CWE-22

## Affected products

- `fastify:fastify-static`

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-6410

## Citation

> AI Analytics. CVE-2026-6410. Retrieved 2026-07-18 from https://api.ai-analytics.org/cve/CVE-2026-6410. Derived from NIST NVD. Licensed CC0.

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