{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-125370","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-11-09T22:03:03.950Z","datePublished":"2026-11-09T23:27:41.949Z","dateUpdated":"2026-11-11T11:53:11.145Z"},"containers":{"cna":{"datePublic":"2026-08-26T00:00:00.000Z","title":"Kubero 3.0.0 through 3.1.1 Authentication Bypass via Hardcoded JWT Secret","descriptions":[{"lang":"en","value":"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."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Use of Hard-coded Cryptographic Key","cweId":"CWE-321","type":"CWE"}]}],"affected":[{"vendor":"kubero-dev","product":"kubero","defaultStatus":"unaffected","versions":[{"version":"3.0.0","lessThanOrEqual":"3.1.1","status":"affected","versionType":"semver"}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":9.3,"baseSeverity":"CRITICAL"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL"}}],"references":[{"url":"https://github.com/kubero-dev/kubero/issues/786","tags":["issue-tracking"],"name":"GitHub Issue #786"},{"url":"https://github.com/kubero-dev/kubero","tags":["product"]},{"url":"https://github.com/kubero-dev/kubero/blob/bcb52376b19347b8c36bc445ddf3e4bff4a5c168/server/src/auth/strategies/jwt.strategy.ts#L13-L32","tags":["technical-description"]},{"name":"VulnCheck Advisory: Kubero 3.0.0 through 3.1.1 Authentication Bypass via Hardcoded JWT Secret","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/kubero-3.0.0-through-3.1.1-authentication-bypass-via-hardcoded-jwt-secret"}],"credits":[{"lang":"en","value":"Azizbek Tursunov (28Hus)","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"},"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-11-11T11:53:11.145Z"}}}}