{"id":"CVE-2026-53721","summary":"Nuxt: Route-rule middleware bypass via case-sensitivity mismatch between vue-router and the routeRules matcher","details":"Nuxt is an open-source web development framework for Vue.js. From versions 3.11.0 to before 3.21.7 and 4.0.0 to before 4.4.7, there is a route-rule middleware bypass via case-sensitivity mismatch between vue-router and the routeRules matcher. This issue has been patched in versions 3.21.7 and 4.4.7.","aliases":["GHSA-mm7m-92g8-7m47"],"modified":"2026-07-08T08:13:43.974686462Z","published":"2026-06-12T13:41:34.022Z","database_specific":{"cwe_ids":["CWE-178","CWE-863"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53721.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53721.json"},{"type":"ADVISORY","url":"https://github.com/nuxt/nuxt/security/advisories/GHSA-mm7m-92g8-7m47"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53721"},{"type":"FIX","url":"https://github.com/nuxt/nuxt/commit/07e39cd6f26e407b4192b7865bd17bc44536b9bb"},{"type":"FIX","url":"https://github.com/nuxt/nuxt/commit/3f3e3fa7b5eec8e495f4f8ce0a54813a8875a11e"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nuxt/nuxt","events":[{"introduced":"78d5098c28d2e21622961d8b87ef9b4623194fec"},{"fixed":"fd806be61503f6ccad099c070a5d803777ba8a57"},{"introduced":"8aacdde48e8388c8bb11b9a5c2f59935341bfcfd"},{"fixed":"b7d57903b947e788fadfcfdf88be7951943731bf"},{"fixed":"07e39cd6f26e407b4192b7865bd17bc44536b9bb"},{"fixed":"3f3e3fa7b5eec8e495f4f8ce0a54813a8875a11e"}],"database_specific":{"cpe":"cpe:2.3:a:nuxt:nuxt:*:*:*:*:*:*:*:*","source":["CPE_RANGE","REFERENCES"],"extracted_events":[{"introduced":"3.11.0"},{"fixed":"3.21.7"},{"introduced":"4.0.0"},{"fixed":"4.4.7"}]}}],"versions":["v4.4.6","v3.21.6","v3.21.5","v4.4.5","v3.21.4","v4.4.4","v3.21.3","v4.4.3","v4.4.2","v3.21.2","v4.4.1","v4.4.0","v4.3.1","v3.21.1","v3.21.0","v4.3.0","v3.20.2","v4.2.2","v3.20.1","v4.2.1","v3.20.0","v4.2.0","v3.19.3","v4.1.3","v3.19.2","v4.1.2","v3.19.1","v4.1.1","v3.19.0","v4.1.0","v3.18.1","v4.0.3","v3.18.0","v4.0.2","v4.0.1","v4.0.0","v3.17.7","v3.17.6","v3.17.5","v3.17.4","v3.17.3","v3.17.2","v3.17.1","v3.17.0","v3.16.2","v3.16.1","v3.16.0","v3.15.4","v3.15.3","v3.15.2","v3.15.1","v3.15.0","v3.14.1592","v3.14.159","v3.14.0","v3.13.2","v3.13.1","v3.13.0","v3.12.4","v3.12.3","v3.12.2","v3.12.1","v3.12.0","v3.11.2","v3.11.1","v3.11.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53721.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N"}]}