CVE-2026-116747 PUBLISHED

Kener 3.0.0 before 4.1.10 Authentication Bypass via Hardcoded Fallback JWT Secret

Assigner: VulnCheck
Reserved: 26.10.2026 Published: 26.10.2026 Updated: 26.10.2026

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.

CVSS Vector: 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 Score: 9.2

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	Present	Availability	High	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 8.1

Attack Vector	Network	Scope	Unchanged
Attack Complexity	High	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	rajnandan1
Product	kener
Versions	Default: unaffected affected from 3.0.0 to 4.1.10 (excl.)

CVE-2026-116747 PUBLISHED

Kener 3.0.0 before 4.1.10 Authentication Bypass via Hardcoded Fallback JWT Secret

Metrics

Product Status

Credits

References

Problem Types