CVE-2026-45670
Source code may 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.
Does this matter?
Lower severity and a low EPSS score (0.21%). Track it; it rarely justifies an emergency change on its own.
Description
Nuxt is an open-source web development framework for Vue.js. In @nuxt/rspack-builder and @nuxt/webpack-builder versions 3.15.4 to before 3.21.6, and 4.0.0-alpha.1 to before 4.4.6, there is an incomplete fix for GHSA-4gf7-ff8x-hq99. Source code may 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 3.21.6 and 4.4.6.
- 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:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.21% probability · 11th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-749
- Affected
- nuxt/nuxt\/rspack-builder · nuxt/nuxt\/webpack-builder
- Source
- security-advisories@github.com
References
- https://github.com/nuxt/nuxt/pull/35051Issue Tracking
- https://github.com/nuxt/nuxt/security/advisories/GHSA-4gf7-ff8x-hq99Exploit, Vendor Advisory
- https://github.com/nuxt/nuxt/security/advisories/GHSA-6m52-m754-pw2gExploit, Vendor Advisory
- https://github.com/nuxt/nuxt/security/advisories/GHSA-4gf7-ff8x-hq99Exploit, Vendor Advisory
- https://github.com/nuxt/nuxt/security/advisories/GHSA-6m52-m754-pw2gExploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.