---
cve: "CVE-2026-93981"
severity: "LOW"
cvss: 2.3
epss: "6.6%"
vendor: "honojs"
kev: false
exploited: false
published: "2026-09-19 11:53:34"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T00:00:32+02:00"
---

# CVE-2026-93981

> 2.3 LOW · 🧪 PoC

## Beschreibung

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.

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Keine | bad |

## Patch verfügbar (OSV)

- eebdf7be39abf0a872671835ccce0c4f03ea497a (Commit)

## Referenzen

- <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>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-93981) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_