{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-106106", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-10-06T15:33:55.333Z", "datePublished": "2026-10-06T17:24:07.788Z", "dateUpdated": "2026-10-06T18:22:44.948Z"}, "containers": {"cna": {"title": "Quasar Framework: SSR/SSG dev error page discloses the full shell environment and its </script> escape is bypassable", "problemTypes": [{"descriptions": [{"cweId": "CWE-79", "lang": "en", "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-497", "lang": "en", "description": "CWE-497: Exposure of Sensitive System Information to an Unauthorized Control Sphere", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "ADJACENT", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "HIGH", "subIntegrityImpact": "HIGH", "subAvailabilityImpact": "NONE", "baseScore": 7.1, "baseSeverity": "HIGH", "vectorString": "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", "version": "4.0"}}], "references": [{"name": "https://github.com/quasarframework/quasar/security/advisories/GHSA-r5mf-4r5x-q78f", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/quasarframework/quasar/security/advisories/GHSA-r5mf-4r5x-q78f"}, {"name": "https://github.com/quasarframework/quasar/commit/61c2bd8a607785fdade72cce20e8faf1de7eee15", "tags": ["x_refsource_MISC"], "url": "https://github.com/quasarframework/quasar/commit/61c2bd8a607785fdade72cce20e8faf1de7eee15"}, {"name": "https://github.com/quasarframework/quasar/releases/tag/@quasar/app-vite-v3.3.0", "tags": ["x_refsource_MISC"], "url": "https://github.com/quasarframework/quasar/releases/tag/@quasar/app-vite-v3.3.0"}], "affected": [{"vendor": "quasarframework", "product": "quasar", "versions": [{"version": "< 2.23.3", "status": "affected"}]}, {"vendor": "@quasar", "product": "render-ssr-error", "versions": [{"version": "< 2.2.4", "status": "affected"}]}, {"vendor": "@quasar", "product": "app-vite", "versions": [{"version": "< 3.3.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-06T17:24:07.788Z"}, "descriptions": [{"lang": "en", "value": "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."}], "source": {"advisory": "GHSA-r5mf-4r5x-q78f", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/quasarframework/quasar/security/advisories/GHSA-r5mf-4r5x-q78f", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-10-06T18:22:31.217011Z", "id": "CVE-2026-106106", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-06T18:22:44.948Z"}}]}}

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