GHSA-p6vg-p826-qp3v

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GHSA-p6vg-p826-qp3v

Summary: URL Redirection to Untrusted Site ('Open Redirect') in fastify-static

Details: ### Impact A redirect vulnerability in the `fastify-static` module allows remote attackers to redirect Mozilla Firefox users to arbitrary websites via a double slash `//` followed by a domain: `http://localhost:3000//google.com/%2e%2e`. The issue shows up on all the `fastify-static` applications that set `redirect: true` option. By default, it is `false`. ### Patches The issue has been patched in `[email protected]` ### Workarounds If updating is not an option, you can sanitize the input URLs using the [`rewriteUrl`](https://www.fastify.io/docs/latest/Server/#rewriteurl) server option. ### References + Bug founder: drstrnegth + [hackerone Report](https://hackerone.com/reports/1354255) ### For more information If you have any questions or comments about this advisory: * Open an issue in [fastify-static](https://github.com/fastify/fastify-static) * Contact the [security team](https://github.com/fastify/fastify/blob/main/SECURITY.md#the-fastify-security-team)

References: https://github.com/fastify/fastify-static/security/advisories/GHSA-p6vg-p826-qp3v, https://nvd.nist.gov/vuln/detail/CVE-2021-22963, https://hackerone.com/reports/1354255, https://github.com/fastify/fastify-static