by Kastro
Paper/Archive/CVE-2026-116747

CVE-2026-116747

rajnandan1 kener — Kener 3.0.0 before 4.1.10 Authentication Bypass via Hardcoded Fallback JWT Secret

EPSS 0.6%CVSS 9.2
critical.is priorityof 100
38
CVSS 9.2 (CNA)9.2 / 10 × 3027.6Not in CISA KEV+300.0EPSS percentile 49.8.498 × 2010.0No public exploit+100.0SSVC exploitation: unknown+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
kener3.0.0 – < 4.1.104.1.10CNA

Scores by source

VulnCheck (CNA)9.2CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
VulnCheck (CNA)8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

References

refgithub.com/rajnandan1/kener/issues/871refgithub.com/rajnandan1/kenerpatchgithub.com/rajnandan1/kener/commit/ff636483544c926eab5b5e3e26b811c0f52bcaf8refgithub.com/rajnandan1/kener/releases/tag/v4.1.10writeupgithub.com/rajnandan1/kener/blob/v4.1.9/src/lib/server/controllers/commonController.ts#L44-L55writeupvulncheck.com/advisories/kener-3.0.0-before-4.1.10-authentication-bypass-via-hardcoded-fallback-jwt-secret