{"cve":"CVE-2026-45670","nvd":{"published":"2026-06-12T14:16:31.443","modified":"2026-06-17T10:52:26.860","status":"Analyzed","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_v4":{"vector":"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","score":5.9},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","score":5.4},"cwes":["CWE-749"],"references":["https://github.com/nuxt/nuxt/pull/35051","https://github.com/nuxt/nuxt/security/advisories/GHSA-4gf7-ff8x-hq99","https://github.com/nuxt/nuxt/security/advisories/GHSA-6m52-m754-pw2g","https://github.com/nuxt/nuxt/security/advisories/GHSA-4gf7-ff8x-hq99","https://github.com/nuxt/nuxt/security/advisories/GHSA-6m52-m754-pw2g"],"products":["nuxt:nuxt\\/rspack-builder","nuxt:nuxt\\/webpack-builder"],"source":"nvd","synced_at":"2026-10-19T22:38:48.522727527+00:00"},"epss":{"cve":"CVE-2026-45670","score":0.00205,"percentile":0.10515,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-6m52-m754-pw2g","url":"https://osv.dev/vulnerability/GHSA-6m52-m754-pw2g","summary":"Nuxt: Dev server exposes built source over LAN to malicious sites (incomplete fix for GHSA-4gf7-ff8x-hq99)","modified":"2026-07-08T17:45:15.001725956Z","packages":[{"ecosystem":"npm","name":"@nuxt/rspack-builder","purl":"pkg:npm/%40nuxt/rspack-builder","ranges":[">=3.15.4 <3.21.6"],"fixed":["3.21.6"]},{"ecosystem":"npm","name":"@nuxt/rspack-builder","purl":"pkg:npm/%40nuxt/rspack-builder","ranges":[">=4.0.0-alpha.1 <4.4.6"],"fixed":["4.4.6"]},{"ecosystem":"npm","name":"@nuxt/webpack-builder","purl":"pkg:npm/%40nuxt/webpack-builder","ranges":[">=3.15.4 <3.21.6"],"fixed":["3.21.6"]},{"ecosystem":"npm","name":"@nuxt/webpack-builder","purl":"pkg:npm/%40nuxt/webpack-builder","ranges":[">=4.0.0-alpha.1 <4.4.6"],"fixed":["4.4.6"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}