GHSA-8pvw-jcv7-9cmj
@fastify/static vulnerable to Authorization Bypass via Non-Canonical URL Paths
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | @fastify/static | < 10.1.2 | 10.1.2 |
Details
As written in the advisory (Markdown source, shown as plain text).
### Impact
`@fastify/static` evaluates the `allowedPath` callback before normalizing dot segments and duplicate slashes in the pathname used for file resolution. Non-canonical pathnames such as `//file`, `/./file`, or `/public/../private/file` bypass `allowedPath` filtering while resolving to the intended file on disk.
Applications that use `allowedPath` as a security boundary to restrict access to specific static files or path subtrees may unintentionally expose files that were intended to be denied.
### Patches
Upgrade to `@fastify/static` >= 10.1.2.
### Workarounds
None. Upgrade to the patched version.
References
External links from the advisory. They lead to third-party sites.
- https://github.com/fastify/fastify-static/security/advisories/GHSA-8pvw-jcv7-9cmj
- https://nvd.nist.gov/vuln/detail/CVE-2026-7120
- https://github.com/fastify/fastify-static/commit/878c72e920fabacf7e37739bf78057044717bf63
- https://cna.openjsf.org/security-advisories.html
- https://github.com/fastify/fastify-static
- https://github.com/fastify/fastify-static/releases/tag/v10.1.2