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CVE-2026-114132

MEDIUM 6.3

Published 2026-10-21 · Last modified 2026-10-23

Nuxt is an open-source web development framework for Vue.js. Prior to 4.6.2, Nuxt resolves pages case-insensitively by default while Nitro matches server-side route-rule keys case-sensitively, allowing a request whose path differs only by letter case to render without the server rule intended for that page. The mismatch can skip redirect, headers, proxy, ssr: false, and noScripts, and can cause getRouteRules(event) and matchRouteRules to return no rule for the case variant. Applications that set router.options.sensitive: true in nuxt.config are not affected; setting sensitive only in app/router.options.ts does not establish this exclusion because the server follows the nuxt.config value. Access checks implemented in server middleware, page route middleware, or page data fetching remain independent of this matcher. This issue is fixed in version 4.6.2.

NO EXPLOITATION SIGNALS

No known exploitation, public exploit, or elevated probability at this time. Track for changes.

Exploitation likelihood

0.4%chance of exploitation in 30 days · 36th percentile

○ In CISA KEV ○ Catalogued PoC

Impact if exploited

6.3CVSS 4.0 · MEDIUM

  • ConfidentialityLow
  • IntegrityLow
  • AvailabilityNone

What an attacker needs

  • ✓Access: Reachable over the network — no local access needed
  • ✓Privileges: No account or privileges required
  • ✓User interaction: No user interaction needed
  • ✓Complexity: No special conditions — reliably repeatable
  • ⚠Requirements: Specific conditions must be present

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

Search GitHub now — results may be empty or unverified.

Tracked sources are checked daily for recent CVEs, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Data snapshot:

Affected

Vendors Nuxt

Products Nuxt

Weakness (CWE)

  • CWE-178: : Improper Handling of Case Sensitivity
  • CWE-863: : Incorrect Authorization

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

References and research data (JSON)

Packages and version ranges

Each advisory describes its own package and affected ranges. A boundary applies to that range; it is not a universal upgrade recommendation.

  • nuxt npm

    pkg:npm/nuxt

    SEMVER range
    • Introduced version (included): 4.0.0
    • Fixed boundary (excluded): 4.6.2
    Additional upstream package constraints
    {
  "database": {
    "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-vjh5-4x84-xrqp/GHSA-vjh5-4x84-xrqp.json"
  }
}
    GitHub Advisory Database · GHSA-vjh5-4x84-xrqp · Updated 2026-10-22T17:15:04.297280606Z
  • nuxt npm

    pkg:npm/nuxt

    SEMVER range
    • Introduced version (included): 3.0.0
    Additional upstream package constraints
    {
  "database": {
    "last_known_affected_version_range": "< 4.0.0",
    "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-vjh5-4x84-xrqp/GHSA-vjh5-4x84-xrqp.json"
  }
}
    GitHub Advisory Database · GHSA-vjh5-4x84-xrqp · Updated 2026-10-22T17:15:04.297280606Z
  • @nuxt/nitro-server npm

    pkg:npm/%40nuxt/nitro-server

    SEMVER range
    • Introduced version (included): 4.2.0
    • Fixed boundary (excluded): 4.6.2
    Additional upstream package constraints
    {
  "database": {
    "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-vjh5-4x84-xrqp/GHSA-vjh5-4x84-xrqp.json"
  }
}
    GitHub Advisory Database · GHSA-vjh5-4x84-xrqp · Updated 2026-10-22T17:15:04.297280606Z
  • @nuxt/nitro-server npm

    pkg:npm/%40nuxt/nitro-server

    SEMVER range
    • Introduced version (included): 3.20.0
    Additional upstream package constraints
    {
  "database": {
    "last_known_affected_version_range": "< 4.0.0",
    "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-vjh5-4x84-xrqp/GHSA-vjh5-4x84-xrqp.json"
  }
}
    GitHub Advisory Database · GHSA-vjh5-4x84-xrqp · Updated 2026-10-22T17:15:04.297280606Z

All CVSS metrics

  • MEDIUM 6.3 v4.0 · CNA Primary
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
  • MEDIUM 6.3 v4.0 · NVD Secondary
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

References

Advisories

Technical & other

Sources: NVD · CVE.org · EPSS