{"schemaVersion":3,"id":"GHSA-6623-4Q32-82V8","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"Duplicate Advisory: hono/jsx renders plain strings unescaped in boundary components, leading to XSS\n\n## Duplicate Advisory\n\nThis advisory has been withdrawn because it is a duplicate of GHSA-hxh3-vqpv-xpqv.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.","dates":{"published":"2026-09-19T12:32:10.000Z","modified":"2026-10-01T00:00:05.652Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":2.3,"severity":"low","version":"4.0","versionLabel":"v4.0","source":"OSV · Npm","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/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","computed":true,"selection":"version-preference"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"OSV · Npm","score":2.3,"severity":"low","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/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","exploitability":null,"impact":null,"computed":true},{"version":"3.1","versionLabel":"v3.1","source":"OSV · Npm","score":4.7,"severity":"medium","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N","exploitability":4.1,"impact":4.5,"computed":true}]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"Npm","product":"hono","name":"hono","label":"hono","ecosystem":"Npm","cpePart":null,"purl":"pkg:npm/hono","purlType":"npm","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/honojs/hono/security/advisories/GHSA-hxh3-vqpv-xpqv","label":"github.com/honojs/hono/security/advisories/GHSA-hxh3-vqpv-xpqv","hostname":"github.com","tags":["WEB"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93981","label":"nvd.nist.gov/vuln/detail/CVE-2026-93981","hostname":"nvd.nist.gov","tags":["Advisory"]},{"url":"https://www.vulncheck.com/advisories/hono-jsx-before-4.13.7-cross-site-scripting-via-unescaped-strings","label":"www.vulncheck.com/advisories/hono-jsx-before-4.13.7-cross-site-scripting-via-unescaped-strings","hostname":"www.vulncheck.com","tags":["WEB"]}],"lineage":{"upstream":[],"downstream":["CVE-2026-93981"],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-09-19T12:32:10.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-01T00:00:05.652Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":9,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-21T13:12:53.255Z","stale":false,"partial":false}}