# CVE-2026-49993

## Summary

- **CVE ID:** CVE-2026-49993
- **Severity:** MEDIUM
- **CVSS Score:** 5.9 (CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-749
- **Published:** Jun 12, 2026
- **Last Modified:** Jun 12, 2026

## Description

Nuxt is an open-source web development framework for Vue.js. In @nuxt/rspack-builder and @nuxt/webpack-builder from versions 3.15.4 to before 3.21.7 and 4.0.0 to before 4.4.7, there is an incomplete fix for GHSA-6m52-m754-pw2g. Source code may still be stolen during dev when using the webpack / rspack builder if the dev server is bound to a non-loopback address (e.g. nuxt dev --host) and the developer opens a malicious site on the same network. This issue has been patched in versions 3.21.7 and 4.4.7.

## Affected Products

- nuxt — nuxt (>= 3.15.4, < 3.21.7)
- nuxt — nuxt (>= 4.0.0, < 4.4.7)

## References

- [CNA](https://github.com/nuxt/nuxt/security/advisories/GHSA-x6qj-4h56-5rj5)
- [CNA](https://github.com/nuxt/nuxt/security/advisories/GHSA-6m52-m754-pw2g)
- [CNA](https://github.com/nuxt/nuxt/pull/35200)
- [CNA](https://github.com/nuxt/nuxt/commit/77187ee4015e9267fb464951542a3e09e8b5fa05)
- [CNA](https://github.com/nuxt/nuxt/commit/e351de943e82db16970618b60dc7fdbaa58630f3)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.28%
- **EPSS Percentile:** 20.4

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._