{"id":"CVE-2026-128072","summary":"@nuxt/webpack-builder and @nuxt/rspack-builder dev server serves built source to DNS rebinding pages","details":"Nuxt is an open-source web development framework for Vue.js. From @nuxt/webpack-builder 3.0.0 and @nuxt/rspack-builder 3.12.2 until 4.6.4, the development middleware trusts Origin, Referer, or Sec-Fetch-Site when the Host header names the same attacker-controlled hostname. After DNS rebinding changes that hostname to a loopback address, a malicious page opened by a developer can read /_nuxt/*.js client chunks and inline source maps, exposing compiled application source, local filesystem paths, and developer-controlled values embedded in the client bundle. The attacker must know or guess the development-server port and induce the developer to open the malicious page; Chrome 142 and later and other Chromium-based browsers that enforce Local Network Access restrictions prompt before a public page can reach the loopback address. The default Vite builder and production builds are unaffected. This issue is fixed in version 4.6.4.","aliases":["GHSA-x2wv-5868-p7v2"],"modified":"2026-11-14T02:47:33.961789007Z","published":"2026-11-13T17:28:20.202Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-346"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/128xxx/CVE-2026-128072.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/128xxx/CVE-2026-128072.json"},{"type":"FIX","url":"https://github.com/nuxt/nuxt/commit/3c9645326a2b3f5cfa09c9a935db9b1825d560e7"},{"type":"FIX","url":"https://github.com/nuxt/nuxt/commit/3e1c7964e6843e1c5f218867a4ccd4cd00ad9ebb"},{"type":"FIX","url":"https://github.com/nuxt/nuxt/commit/8c11d965dad5bfc58d4c25e796915aec045acb78"},{"type":"FIX","url":"https://github.com/nuxt/nuxt/commit/f8d64c9aa773a033596532365d455890da9da197"},{"type":"WEB","url":"https://github.com/nuxt/nuxt/releases/tag/v4.6.4"},{"type":"ADVISORY","url":"https://github.com/nuxt/nuxt/security/advisories/GHSA-x2wv-5868-p7v2"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-128072"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nuxt/nuxt","events":[{"introduced":"d991a55ec36f5ac61de0af7d0b018a150153445b"},{"fixed":"b9a6b687018a87db72832620beec55bf46abd623"},{"introduced":"8578e2bd62bdf3ce9dab70c7241a3953feb043b7"},{"fixed":"b9a6b687018a87db72832620beec55bf46abd623"},{"fixed":"3c9645326a2b3f5cfa09c9a935db9b1825d560e7"},{"fixed":"3e1c7964e6843e1c5f218867a4ccd4cd00ad9ebb"},{"fixed":"8c11d965dad5bfc58d4c25e796915aec045acb78"},{"fixed":"f8d64c9aa773a033596532365d455890da9da197"}],"database_specific":{"extracted_events":[{"range":[{"introduced":"3.0.0"},{"fixed":"4.6.4"}],"source":"AFFECTED_FIELD","strategy":"StringRangeExpression"},{"strategy":"StringRangeExpression","range":[{"introduced":"3.12.2"},{"fixed":"4.6.4"}],"source":"AFFECTED_FIELD"},{"range":[{"fixed":"3c9645326a2b3f5cfa09c9a935db9b1825d560e7"}],"source":"REFERENCES_COMMIT"},{"range":[{"fixed":"3e1c7964e6843e1c5f218867a4ccd4cd00ad9ebb"}],"source":"REFERENCES_COMMIT"},{"source":"REFERENCES_COMMIT","range":[{"fixed":"8c11d965dad5bfc58d4c25e796915aec045acb78"}]},{"range":[{"fixed":"f8d64c9aa773a033596532365d455890da9da197"}],"source":"REFERENCES_COMMIT"},{"source":"REFERENCES_TAG","original_tag":"v4.6.4","range":[{"fixed":"b9a6b687018a87db72832620beec55bf46abd623"}]}]}}],"versions":["v4.6.3","v4.6.2","v4.6.1","v4.6.0","v4.5.0","v4.5.2","v4.5.1","v4.4.8","v4.4.7","v4.4.6","v4.4.5","v4.4.4","v4.4.3","v4.4.2","v4.4.1","v4.4.0","v4.3.1","v4.3.0","v4.2.2","v4.2.1","v4.2.0","v4.1.3","v4.1.2","v4.1.1","v4.1.0","v4.0.3","v4.0.2","v4.0.1","v4.0.0","v4.0.0-rc.0","v4.0.0-alpha.4","v4.0.0-alpha.3","v4.0.0-alpha.2","v4.0.0-alpha.1","v3.12.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-128072.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N"}]}