critical · CVSS v3 9.8 · CVSS v4 9.3
CVE-2026-125370
Kubero 3.0.0 through 3.1.1 contains an authentication bypass vulnerability that allows unauthenticated remote attackers …
Description
Kubero 3.0.0 through 3.1.1 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to forge administrative JWTs by using a hardcoded fallback signing secret when JWT_SECRET is unset. Attackers can sign tokens with arbitrary role, userGroups and permissions claims, which JwtStrategy.validate() trusts without a database lookup, to take control of pipelines, applications, users and API tokens.
Scores
- Severity
- critical
- CVSS v2
- 10
- CVSS v3
- 9.8
- CVSS v4
- 9.3
- EPSS
- —