---
cve: "CVE-2026-116747"
severity: "CRITICAL"
cvss: 9.2
epss: ""
vendor: "rajnandan1"
kev: false
exploited: false
published: "2026-10-26 22:16:59"
tags: [cve, security, critical]
source: tsecurity.de CVE-Dossier
exported: "2026-10-29T06:36:06+01:00"
---

# CVE-2026-116747

> 9.2 CRITICAL · 🧪 PoC

## Beschreibung

Kener 3.0.0 before 4.1.10 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge session tokens by using the hardcoded DUMMY_SECRET fallback key. When KENER_SECRET_KEY is empty or unset, attackers knowing an administrator email can sign a kener-user cookie to access /manage/api with full administrative privileges or forge password-reset tokens.

## CNA-Record (Kanon, cvelistV5)

- CNA: **VulnCheck**
- State: PUBLISHED
- Stand: 2026-10-26 21:52:45
- CNA-CVSS: **9.2** (`CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`)

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Schwachstellen-Klasse

- **CWE-321** — Use of Hard-coded Cryptographic Key
  The product uses a hard-coded, unchangeable cryptographic key.

## Patch verfügbar (OSV)

- 68a6ea236ced714b081f0cac7f1d86383f3ef427
- ff636483544c926eab5b5e3e26b811c0f52bcaf8

## Referenzen

- <https://github.com/rajnandan1/kener/issues/871>
- <https://github.com/rajnandan1/kener>
- <https://github.com/rajnandan1/kener/commit/ff636483544c926eab5b5e3e26b811c0f52bcaf8>
- <https://github.com/rajnandan1/kener/releases/tag/v4.1.10>
- <https://github.com/rajnandan1/kener/blob/v4.1.9/src/lib/server/controllers/commonController.ts#L44-L55>
- <https://www.vulncheck.com/advisories/kener-3.0.0-before-4.1.10-authentication-bypass-via-hardcoded-fallback-jwt-secret>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2026-116747/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_