{"cve":"CVE-2026-49993","nvd":{"published":"2026-06-12T14:16:32.650","modified":"2026-06-17T10:55:49.903","status":"Analyzed","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_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:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","score":5.7},"cwes":["CWE-749"],"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"],"products":["nuxt:nuxt\\/rspack-builder","nuxt:nuxt\\/webpack-builder"],"source":"nvd","synced_at":"2026-10-19T22:38:48.522727527+00:00"},"epss":{"cve":"CVE-2026-49993","score":0.0028,"percentile":0.20566,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-x6qj-4h56-5rj5","url":"https://osv.dev/vulnerability/GHSA-x6qj-4h56-5rj5","summary":"@nuxt/webpack-builder and @nuxt/rspack-builder dev server same-origin check bypassed when Sec-Fetch-Site, Origin, and Referer are all absent (incomplete fix for GHSA-6m52-m754-pw2g)","modified":"2026-09-10T03:50:12.300274004Z","packages":[{"ecosystem":"npm","name":"@nuxt/webpack-builder","purl":"pkg:npm/%40nuxt/webpack-builder","ranges":[">=4.0.0 <4.4.7"],"fixed":["4.4.7"]},{"ecosystem":"npm","name":"@nuxt/webpack-builder","purl":"pkg:npm/%40nuxt/webpack-builder","ranges":[">=3.15.4 <3.21.7"],"fixed":["3.21.7"]},{"ecosystem":"npm","name":"@nuxt/rspack-builder","purl":"pkg:npm/%40nuxt/rspack-builder","ranges":[">=4.0.0 <4.4.7"],"fixed":["4.4.7"]},{"ecosystem":"npm","name":"@nuxt/rspack-builder","purl":"pkg:npm/%40nuxt/rspack-builder","ranges":[">=3.15.4 <3.21.7"],"fixed":["3.21.7"]}]}],"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."]}