CVSS 4.0
5.9 mediumCVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:NCVE-2026-49993
Medium (5.9) in nuxt. EPSS 0.3% chance of exploitation in the next 30 days. Fixed in @nuxt/webpack-builder 3.21.7, 4.4.7.
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.
Severity
CVSS 3.1
5.7 mediumCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 20% of CVEs (scores of 2026-10-31)
- CWE
- CWE-749
- Published
- Modified
- Record from
- the NVD, synced
Affected
- nuxt:nuxt\/rspack-builder
- nuxt:nuxt\/webpack-builder
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-x6qj-4h56-5rj5 | npm | @nuxt/webpack-builder | >=4.0.0 <4.4.7 | 4.4.7 |
| GHSA-x6qj-4h56-5rj5 | npm | @nuxt/webpack-builder | >=3.15.4 <3.21.7 | 3.21.7 |
| GHSA-x6qj-4h56-5rj5 | npm | @nuxt/rspack-builder | >=4.0.0 <4.4.7 | 4.4.7 |
| GHSA-x6qj-4h56-5rj5 | npm | @nuxt/rspack-builder | >=3.15.4 <3.21.7 | 3.21.7 |
References
- https://github.com/nuxt/nuxt/commit/77187ee4015e9267fb464951542a3e09e8b5fa05
- https://github.com/nuxt/nuxt/commit/e351de943e82db16970618b60dc7fdbaa58630f3
- https://github.com/nuxt/nuxt/pull/35200
- https://github.com/nuxt/nuxt/security/advisories/GHSA-6m52-m754-pw2g
- https://github.com/nuxt/nuxt/security/advisories/GHSA-x6qj-4h56-5rj5