{"id":"GHSA-6623-4q32-82v8","summary":"Duplicate Advisory: hono/jsx renders plain strings unescaped in boundary components, leading to XSS","details":"## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of GHSA-hxh3-vqpv-xpqv. This link is maintained to preserve external references.\n\n## Original Description\nhono before 4.13.7 fails to HTML-escape plain strings rendered by hono/jsx as a child or fallback of Suspense, as a string child of ErrorBoundary alongside an asynchronous sibling, as the single child of a Context.Provider, or as the root value passed to renderToString() or renderToReadableStream() from hono/jsx/dom/server. These paths stringify their input and treat the result as already-escaped markup, so an attacker who controls such a string during server-side rendering can inject arbitrary HTML and execute script under the application's origin.","modified":"2026-10-01T00:00:05.534055855Z","published":"2026-09-19T12:32:10Z","withdrawn":"2026-09-30T23:46:00Z","database_specific":{"nvd_published_at":"2026-09-19T12:16:41Z","cwe_ids":["CWE-79"],"severity":"LOW","github_reviewed":true,"github_reviewed_at":"2026-09-30T23:46:00Z"},"references":[{"type":"WEB","url":"https://github.com/honojs/hono/security/advisories/GHSA-hxh3-vqpv-xpqv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93981"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/hono-jsx-before-4.13.7-cross-site-scripting-via-unescaped-strings"}],"affected":[{"package":{"name":"hono","ecosystem":"npm","purl":"pkg:npm/hono"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"database_specific":{"last_known_affected_version_range":"\u003c 4.13.7","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-6623-4q32-82v8/GHSA-6623-4q32-82v8.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}