@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
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
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 3.1 | 6.5 |
|---|
- 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:NExploitation evidence
Disclosed: evidence found.
CVE published 13 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| npm@nuxt/nitro-server | Affected
| Fixed in
|
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
- github.com/nuxt/nuxt/security/advisories/GHSA-r99w-jh2x-3mg9 (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-128077 (opens in a new tab)
- github.com/nuxt/nuxt/commit/75c12c6fb4c22ec2cbde0051da24776d2dffa868 (opens in a new tab)
- github.com/nuxt/nuxt (opens in a new tab)
- github.com/nuxt/nuxt/releases/tag/v4.6.4 (opens in a new tab)