Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Nuxt | Nuxt\/Rspack-Builder | >= 3.15.4, < 3.21.7 |
| Nuxt | Nuxt\/Webpack-Builder | >= 3.15.4, < 3.21.7 |
Related Weaknesses (CWE)
References
- https://github.com/nuxt/nuxt/commit/77187ee4015e9267fb464951542a3e09e8b5fa05Patch
- https://github.com/nuxt/nuxt/commit/e351de943e82db16970618b60dc7fdbaa58630f3Patch
- https://github.com/nuxt/nuxt/pull/35200Issue Tracking
- https://github.com/nuxt/nuxt/security/advisories/GHSA-6m52-m754-pw2gExploitMitigationPatch
- https://github.com/nuxt/nuxt/security/advisories/GHSA-x6qj-4h56-5rj5ExploitMitigationPatch
- https://github.com/nuxt/nuxt/security/advisories/GHSA-6m52-m754-pw2gExploitMitigationPatch
- https://github.com/nuxt/nuxt/security/advisories/GHSA-x6qj-4h56-5rj5ExploitMitigationPatch
FAQ
What is CVE-2026-49993?
CVE-2026-49993 is a vulnerability with a CVSS score of 5.7 (MEDIUM). 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 f...
How severe is CVE-2026-49993?
CVE-2026-49993 has been rated MEDIUM with a CVSS base score of 5.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-49993?
Check the references section above for vendor advisories and patch information. Affected products include: Nuxt Nuxt\/Rspack-Builder, Nuxt Nuxt\/Webpack-Builder.