CVE-2026-106104
Severity not reportedQuasar Framework is a framework for building high-performance Vue.js user interfaces.
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-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.
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/quasarframework/quasar/commit/7a954ddafa756afe95c8f633f48ed68a07209d3d security-advisories@github.com
- https://github.com/quasarframework/quasar/releases/tag/quasar-v2.23.3 security-advisories@github.com
- https://github.com/quasarframework/quasar/security/advisories/GHSA-68jq-fhch-4xq4 security-advisories@github.com
- https://github.com/quasarframework/quasar/security/advisories/GHSA-68jq-fhch-4xq4 134c704f-9b21-4f2e-91b3-4a467353bcc0