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CVE-2026-128077VulnerabilityPublished

@nuxt/nitro-server · Nuxt: Incomplete fix for GHSA-9v7c-q64q-vv33: a leading `//` in the request path bypasses `server/middleware` path

Affects @nuxt/nitro-serverSource GCVE Database

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Authoritative record:CVE-2026-128077· Medium 6.5

Not known to be exploited · CVSS 6.5 Medium : upgrade to 4.6.4 when convenient.

Data as of 13 Nov 2026, 20:18 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (GitHub_M)CVSS 3.16.5
Patch
Available – fixed in 4.6.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 13 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Upgrade @nuxt/nitro-server to 4.6.4.

Affected software

ProductAffectedFixed in
npm@nuxt/nitro-serverAffected
  • >=4.6.0 <4.6.4
Fixed in
  • 4.6.4

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade to @nuxt/nitro-server version 4.6.4 or nuxt 4.6.4 or later, where the issue is fixed. As a workaround, implement server middleware to reject request paths starting with double slashes (//) or configure a reverse proxy/CDN to normalize repeated slashes before forwarding requests. No other actions are required once patched.

Description

A path parsing flaw in Nuxt versions 4.6.0 through 4.6.3 allows an unauthenticated attacker to bypass server-side route controls by using request paths starting with double slashes (//). This causes server middleware and route rules keyed on normal paths (e.g., /admin) to be skipped, enabling unauthorized access to protected pages and skipping security headers or redirects. The issue is fixed in version 4.6.4.

References

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