---
cve: "CVE-2026-44459"
severity: "LOW"
cvss: 3.8
epss: "0.2%"
vendor: "honojs"
kev: false
exploited: false
published: "2026-05-13 16:16:57"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-21T09:23:15+02:00"
---

# CVE-2026-44459

> 3.8 LOW · 🧪 PoC

## Beschreibung

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.18, improper validation of the JWT NumericDate claims exp, nbf, and iat in hono/utils/jwt allows tokens with non-spec-compliant claim values to silently bypass time-based checks. This issue is not exploitable by an anonymous attacker; it only manifests when a malformed claim value reaches verify() — typically when the application itself issues such tokens, or when the signing key is otherwise under attacker control. This vulnerability is fixed in 4.12.18.

## CVSS-Vektor

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

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

## Patch verfügbar (OSV)

- f10dee89ced5956b73c1cdc416d6bc0fd54d63b7 (Commit)

## Referenzen

- <https://github.com/honojs/hono/security/advisories/GHSA-hm8q-7f3q-5f36>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-44459) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_