CVE-2026-6410

@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.

The following products are affected by CVE-2026-6410 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-6410.

URL	Resource
https://cna.openjsf.org/security-advisories.html
https://github.com/fastify/fastify-static/security/advisories/GHSA-pr96-94w5-mx2h
https://nvd.nist.gov/vuln/detail/CVE-2026-6410
https://www.cve.org/CVERecord?id=CVE-2026-6410