{"id":"CVE-2026-106106","published":"2026-10-06T18:16:52.030","lastModified":"2026-10-06T20:03:40.690","description":"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.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-79","CWE-497"],"vendors":[],"products":[],"references":[{"url":"https://github.com/quasarframework/quasar/commit/61c2bd8a607785fdade72cce20e8faf1de7eee15","tags":[]},{"url":"https://github.com/quasarframework/quasar/releases/tag/@quasar/app-vite-v3.3.0","tags":[]},{"url":"https://github.com/quasarframework/quasar/security/advisories/GHSA-r5mf-4r5x-q78f","tags":[]},{"url":"https://github.com/quasarframework/quasar/security/advisories/GHSA-r5mf-4r5x-q78f","tags":[]}],"exploitRefs":[{"url":"https://github.com/quasarframework/quasar/commit/61c2bd8a607785fdade72cce20e8faf1de7eee15","tags":[]},{"url":"https://github.com/quasarframework/quasar/releases/tag/@quasar/app-vite-v3.3.0","tags":[]},{"url":"https://github.com/quasarframework/quasar/security/advisories/GHSA-r5mf-4r5x-q78f","tags":[]},{"url":"https://github.com/quasarframework/quasar/security/advisories/GHSA-r5mf-4r5x-q78f","tags":[]}],"hasPoc":true,"ai":null}