---
cve: "CVE-2026-29045"
severity: "HIGH"
cvss: 7.5
epss: "50%"
vendor: "honojs"
kev: false
exploited: false
published: "2026-03-04 23:16:10"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-11T09:19:17+02:00"
---

# CVE-2026-29045

> 7.5 HIGH · 🧪 PoC

## Beschreibung

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.12.4, when using serveStatic together with route-based middleware protections (e.g. app.use('/admin/*', ...)), inconsistent URL decoding allowed protected static resources to be accessed without authorization. The router used decodeURI, while serveStatic used decodeURIComponent. This mismatch allowed paths containing encoded slashes (%2F) to bypass middleware protections while still resolving to the intended filesystem path. This issue has been patched in version 4.12.4.

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Keine | good |
| A Verfügbarkeit | Keine | good |

## Patch verfügbar (OSV)

- 19d20d23a2921e26c3bbfdb5549fce98b4a39b28 (Commit)
- 6a0607a929d888893f0c91d92dce2fcfdb3662a3 (Commit)

## Referenzen

- <https://github.com/honojs/hono/security/advisories/GHSA-q5qw-h33p-qvwr>
- <https://github.com/honojs/hono/commit/6a0607a929d888893f0c91d92dce2fcfdb3662a3>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-29045) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_