{"id":"CVE-2026-106104","title":"Quasar Framework is a framework for building high-performance Vue.js user interfaces","summary":"Quasar Framework is a framework for building high-performance Vue.js user interfaces. Prior to 2.23.3, Platform.parseSSR() passed an unbounded User-Agent request header to getMatch() in ui/src/plugins/platform/Platform.js, whose browser-…","severity":"high","cvss":8.7,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","cwe":["CWE-1333"],"vendor":"quasarframework","product":"quasar","affected":["quasar < 2.23.3"],"published":"2026-10-06","updated":"2026-10-06","sourceUpdated":"2026-10-06T20:03:40.690","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-106104","references":[{"url":"https://github.com/quasarframework/quasar/commit/7a954ddafa756afe95c8f633f48ed68a07209d3d","label":"security-advisories@github.com"},{"url":"https://github.com/quasarframework/quasar/releases/tag/quasar-v2.23.3","label":"security-advisories@github.com"},{"url":"https://github.com/quasarframework/quasar/security/advisories/GHSA-68jq-fhch-4xq4","label":"security-advisories@github.com"}],"tags":["nvd","cve.org"],"cvssSource":"cna","ingestedAt":"2026-10-06T18:11:36.240Z","slug":"CVE-2026-106104","body":"## Overview\n\nQuasar Framework is a framework for building high-performance Vue.js user interfaces. Prior to 2.23.3, Platform.parseSSR() passed an unbounded User-Agent request header to getMatch() in ui/src/plugins/platform/Platform.js, whose browser-detection expressions combined greedy captures with repeated unbounded scans. Platform belongs to autoInstalledPlugins, so this parsing occurs before routing for every SSR request. A crafted unauthenticated request containing repeated version tokens without a terminating Safari token causes super-linear backtracking and blocks the Node.js event loop, delaying every other SSR request. SPA, PWA, Electron, Cordova, Capacitor, browser-extension, and static-site-generation targets are not affected because they do not parse an attacker-controlled request header through this path. This issue is fixed in version 2.23.3.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":47.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}