{"id":"CVE-2026-93981","state":"PUBLISHED","title":"hono/jsx before 4.13.7 Cross-Site Scripting via Unescaped Strings","description":"hono 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.","publishedAt":"2026-09-19T11:53:34.294Z","updatedAt":"2026-09-21T20:47:06.182Z","severity":{"score":2.3,"label":"Low","version":"4.0","vector":"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","source":"VulnCheck"},"assigner":"VulnCheck","products":["honojs hono"],"affected":[{"vendor":"honojs","product":"hono","packageURL":"pkg:npm/hono","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"4.13.7","versionType":"semver"},{"version":"4.13.7","status":"unaffected","versionType":"semver"}]}],"references":["https://github.com/honojs/hono/security/advisories/GHSA-hxh3-vqpv-xpqv","https://www.vulncheck.com/advisories/hono-jsx-before-4.13.7-cross-site-scripting-via-unescaped-strings"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/93xxx/CVE-2026-93981.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-93981","state":"PUBLISHED","datePublished":"2026-09-19T11:53:34.294Z","dateUpdated":"2026-09-21T20:47:06.182Z","assignerShortName":"VulnCheck","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","dateReserved":"2026-09-19T10:55:49.092Z"},"containers":{"cna":{"title":"hono/jsx before 4.13.7 Cross-Site Scripting via Unescaped Strings","descriptions":[{"lang":"en","value":"hono 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. 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