Is there a public exploit for CVE-2026-128077?

No public exploit for CVE-2026-128077 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-128077?

CVE-2026-128077 scores CVSS 6.5 (v3.1), rated medium.

What does CVE-2026-128077 affect?

CVE-2026-128077 affects @nuxt/nitro-server.

6.5 Medium

Nuxt: Incomplete fix for GHSA-9v7c-q64q-vv33: a leading `//` in the request path bypasses `server/middleware` path checks and server route rules on page routes

CVE-2026-128077

Summary Since 4.6.0, Nuxt parses a request path that starts with // as a URL with a host before rendering a page, so //x/admin renders the page at /admin. Nitro's routing, Nitro's route rules and server/middleware see the path as //x/admin, so server-side checks keyed on /admin do not apply. The fix for [GHSA-9v7c-q64q-vv33](https://github.com/nuxt/nuxt/security/advisories/GHSA-9v7c-q64q-vv33) in 4.6.3 covered dot segments but not this form. Impact An unauthenticated attacker can bypass server-side controls that match on the request path of a page route. A route-scoped server handler is skipped: ts // nuxt.config.ts export default defineNuxtConfig({ serverHandlers: [{ route: '/admin', middleware: true, handler: '~~/server/admin-guard.ts' }], }) ts // server/admin-guard.ts export default defineEventHandler((event) => { if (!isAuthenticated(event)) { throw createError({ statusCode: 401 }) } }) With this handler, /admin returns 401, but //x/admin and ///x/admin render app/pages/admin.vue along with the data it fetches during server rendering. server/middleware that checks event.path.startsWith('/admin') is skipped in the same way. Server-side redirect and headers route rules are also…

Assessment

CVSS: 6.5 (v3.1)
Severity: Medium
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 13 November 2026
Last updated: 13 November 2026
Affected: @nuxt/nitro-server
Weakness: CWE-436, CWE-863

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

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