{"id":"CVE-2026-106106","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 @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 u…","severity":"high","cvss":7.1,"cvssVector":"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","cwe":["CWE-79","CWE-497"],"vendor":"quasarframework","product":"quasar","affected":["quasar < 2.23.3","render-ssr-error < 2.2.4","app-vite < 3.3.0"],"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-2026-106106","references":[{"url":"https://github.com/quasarframework/quasar/commit/61c2bd8a607785fdade72cce20e8faf1de7eee15","label":"security-advisories@github.com"},{"url":"https://github.com/quasarframework/quasar/releases/tag/@quasar/app-vite-v3.3.0","label":"security-advisories@github.com"},{"url":"https://github.com/quasarframework/quasar/security/advisories/GHSA-r5mf-4r5x-q78f","label":"security-advisories@github.com"},{"url":"https://github.com/quasarframework/quasar/security/advisories/GHSA-r5mf-4r5x-q78f","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-06T18:22:31.217011Z"},"cvssSource":"cna","ingestedAt":"2026-10-06T18:11:36.238Z","slug":"CVE-2026-106106","body":"## Overview\n\nQuasar 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":51,"depthScoreParts":{"impact":39.1,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":216687,"id":"CVE-2026-106106","ts":1791314084772,"field":"exploit_available","old":"false","new":"true"}]}