CVE-2026-106106
Quasar Framework is a framework for building high-performance Vue.js user interfaces. Prior to @quasar/render-ssr-error 2.2.4 and @quasar/app-vite 3.3.0, renderSSRError() in utils/render-ssr-error/src/index.js used diagnostic data from utils/render-ssr-error/src/env.js to serialize process.env, request headers, and cookies into the HTTP page returned by serve.devError(), while the development server listened on all interfaces by default. Any network-adjacent client that reaches an SSR or SSG render failure through this development-only error path can obtain shell environment secrets. The renderer escaped only one exact lowercase script closing-tag spelling, so case variants and valid closing-tag delimiter variants in reflected diagnostic data could terminate the script element and inject markup; executing the injected code in a developer browser additionally requires the payload to accompany that developer's request. This issue is fixed in @quasar/render-ssr-error 2.2.4 and @quasar/app-vite 3.3.0.
- CVSS 4.0
- 7.1
CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:H/VI:L/VA:N/SC:H/SI:H/SA:N - EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 19% of CVEs (scores of 2026-10-25)
- CWEs
- CWE-79, CWE-497
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-r5mf-4r5x-q78f | npm | @quasar/render-ssr-error | <2.2.4 | 2.2.4 |
| GHSA-r5mf-4r5x-q78f | npm | @quasar/app-vite | <3.3.0 | 3.3.0 |
References
- https://github.com/quasarframework/quasar/commit/61c2bd8a607785fdade72cce20e8faf1de7eee15
- https://github.com/quasarframework/quasar/releases/tag/@quasar/app-vite-v3.3.0
- https://github.com/quasarframework/quasar/security/advisories/GHSA-r5mf-4r5x-q78f
- https://github.com/quasarframework/quasar/security/advisories/GHSA-r5mf-4r5x-q78f