CRITICAL 9.3 NVD
CVE-2026-125370
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
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.
References
- https://github.com/kubero-dev/kubero
- https://github.com/kubero-dev/kubero/blob/bcb52376b19347b8c36bc445ddf3e4bff4a5c168/server/
- https://github.com/kubero-dev/kubero/issues/786
- https://www.vulncheck.com/advisories/kubero-3.0.0-through-3.1.1-authentication-bypass-via-
This critical severity vulnerability with a CVSS score of 9.3 was published on 2026-11-10 via NVD.
Risk Timeline
CVE Disclosed2026-11-10 · -1 days ago
Remediation Resources
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