---
title: "CVE-2026-116747: Kener - Authentication Bypass"
description: "Kener < 4.1.10 contains an authentication bypass caused by use of a hardcoded DUMMY_SECRET fallback key when KENER_SECRET_KEY is empty or unset, letting unauthenticated attackers forge session tokens and gain administrative access, exploit requires knowledge of an administrator email."
url: https://panop.io/threat-heartbeat/CVE-2026-116747/
---

# CVE-2026-116747 Kener - Authentication Bypass

Kener < 4.1.10 contains an authentication bypass caused by use of a hardcoded DUMMY\_SECRET fallback key when KENER\_SECRET\_KEY is empty or unset, letting unauthenticated attackers forge session tokens and gain administrative access, exploit requires knowledge of an administrator email.

CVSS base score 8.1 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-116747)

## Details

Type

Authentication Bypass

Impact

Broken Authentication

CVSS vector

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

Published

26 October 2026

Updated

27 October 2026

Weakness

[CWE-321](https://cwe.mitre.org/data/definitions/321.html)

## Vendor fix

Update to version 4.1.10 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-116747](https://nvd.nist.gov/vuln/detail/CVE-2026-116747)
- [https://github.com/rajnandan1/kener/releases/tag/v4.1.10](https://github.com/rajnandan1/kener/releases/tag/v4.1.10)
- [https://www.vulncheck.com/advisories/kener-3.0.0-before-4.1.10-authentication-bypass-via-hardcoded-fallback-jwt-secret](https://www.vulncheck.com/advisories/kener-3.0.0-before-4.1.10-authentication-bypass-via-hardcoded-fallback-jwt-secret)
- [https://github.com/rajnandan1/kener](https://github.com/rajnandan1/kener)
- [https://github.com/rajnandan1/kener/blob/v4.1.9/src/lib/server/controllers/commonController.ts#L44-L55](https://github.com/rajnandan1/kener/blob/v4.1.9/src/lib/server/controllers/commonController.ts#L44-L55)
- [https://github.com/rajnandan1/kener/commit/ff636483544c926eab5b5e3e26b811c0f52bcaf8](https://github.com/rajnandan1/kener/commit/ff636483544c926eab5b5e3e26b811c0f52bcaf8)
- [https://github.com/rajnandan1/kener/issues/871](https://github.com/rajnandan1/kener/issues/871)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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