CVE-2026-6414
mediumPriorität · verfolgen · 0EPSS 0.004 · 36. PerzentilEUUSEPSS · bewertet 2026-10-27
@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.
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Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen
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betroffene Produkte (3)
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Advisories (1)
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- GHSA-x428-ghpx-8j92@fastify/static vulnerable to route guard bypass via encoded path separators2026-04-16ghsa · osvUS
### Impact `@fastify/static` v9.1.0 and earlier decodes percent-encoded path separators (`%2F`) before filesystem resolution, but Fastify's router treats them as literal characters. This creates a routing mismatch: route guards on `/admin/*` do not match `/admin%2Fsecret.html`, but @fastify/static decodes it to `/admin/secret.html` and serves the file. Applications that rely on route-based middleware or guards to protect files served by @fastify/static can be bypassed with encoded path separators. ### Patches Upgrade to `@fastify/static` >= 9.1.1. ### Workarounds None. Upgrade to the patched version.
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Referenzen (11)
Externe Belege — Patches, Meldungen, Analysen.
- https://access.redhat.com/security/cve/cve-2026-6414cnnvd
- https://github.com/fastify/fastify-static/releasesPatchcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2026-6414cnnvd
- https://cna.openjsf.org/security-advisories.htmlenisa_euvd
- https://github.com/fastify/fastify-static/security/advisories/GHSA-x428-ghpx-8j92enisa_euvd
- https://github.com/fastify/middie/security/advisories/GHSA-cxrg-g7r8-w69penisa_euvd
- https://github.com/honojs/hono/security/advisories/GHSA-q5qw-h33p-qvwrenisa_euvd
- https://cna.openjsf.org/security-advisories.htmlThird Party Advisorynvd
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