CVE-2026-6414
CVE-2026-6414 · @fastify/static vulnerable to route guard bypass via encoded path separators
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@fastify/static versions 8.0.0 through 9.1.0 decode percent-encoded path separators (%2F) before filesystem resolution, while Fastify's router treats them as literal characters. This mismatch allows attackers to bypass route-based middleware or guards that protect files served by @fastify/static. For example, a route guard on a protected path can be circumvented by encoding the path separator in the URL. Upgrade to @fastify/static 9.1.1 to fix this issue. There are no workarounds.
CVSS 5.9 · Mittel · EPSS 0,4% · Korrektur verfügbar
- Veröffentlicht
- Aktualisiert
Technologie-Stack: node
Betroffene Produkte und Versionen
@fastify/static
- Softwareversionen
- ≥ 8.0.0, < 9.1.1: Betroffen (semver)
- 9.1.1: Nicht betroffen (semver)
Auf 9.1.1 aktualisieren
@fastify/static npm
- Betroffene Versionsbereiche
- SEMVER: ≥ 8.0.0, < 9.1.1
Auf 9.1.1 aktualisieren
Originalquellen
- https://github.com/fastify/middie/security/advisories/GHSA-cxrg-g7r8-w69p
- https://github.com/honojs/hono/security/advisories/GHSA-q5qw-h33p-qvwr
- https://github.com/fastify/fastify-static/security/advisories/GHSA-x428-ghpx-8j92
- https://cna.openjsf.org/security-advisories.html
- https://nvd.nist.gov/vuln/detail/CVE-2026-6414