CVE-2026-116747 json
Kener 3.0.0 before 4.1.10 Authentication Bypass via Hardcoded Fallback JWT Secret
published 2026-10-26 13 d ago modified 2026-11-05 3 d ago also EUVD-2026-110495
- cvss
- 8.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 50%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- rajnandan1 kener 4.1.10
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 3 d ago
Exploit prediction
0.62% chance of exploitation in the next 30 days, higher than 50% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 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 |
| CNA | 3.1 | 8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CNA | 4.0 | 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- rajnandan1 kener
Classification
- Weakness
-
- CWE-321 Use of Hard-coded Cryptographic Key
References
-
github.com
/rajnandan1/kener/commit/ff636483544c926eab5b5e3e26b811c0f52bcaf8
patch
-
github.com
/rajnandan1/kener/issues/871
issue-tracking
-
github.com
/rajnandan1/kener
product
-
github.com
/rajnandan1/kener/releases/tag/v4.1.10
release-notes
-
github.com
/rajnandan1/kener/blob/v4.1.9/src/lib/server/controllers/commonController.ts#L44-L55
technical-description
-
vulncheck.com
/advisories/kener-3.0.0-before-4.1.10-authentication-bypass-via-hardcoded-fallback-jwt-secret
third-party-advisory
Sources
- CVE List CVE-2026-116747
- NVD CVE-2026-116747
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