Disclosure summary
Several @quasar/app-vite SSR and SSG renderer paths interpolate `ssrContext.nonce` directly into quoted HTML attributes. An application that derives or overrides the nonce using untrusted data can allow a quote to terminate the nonce attribute and inject additional attributes or markup into generated HTML. Cryptographically generated base64 or base64url nonces are not directly affected because they do not contain HTML attribute delimiters. Exploitation requires an application to place attacker-controlled or otherwise unsafe data in `ssrContext.nonce`. The remediation centralizes nonce handling across development SSR/SSG, production SSR, production SSG, critical CSS, store-state scripts, and Vue Devtools. It validates the value as a non-empty base64/base64url CSP nonce and HTML-encodes the attribute value before rendering.
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
GitHub Reviewed Security Advisories · GHSA-5m6h-8g35-p3m7
Open original source · Updated Oct 07, 2026
Quasar Framework: App Vite SSR and SSG nonce attributes are not safely constrained
Source severity: HIGH / 8.3
| Ecosystem | Package | Affected range | First patched |
|---|---|---|---|
| npm | @quasar/app-vite | 3.3.0 |
Original records & references
- NIST NVD record
- CVE Program record
- github.com — Reviewed advisory
PUBLISHED 2026-10-07T12:16:03-04:00
MODIFIED 2026-10-07T12:16:03-04:00
INGESTED 2026-10-08T12:05:11-04:00