{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-11-08T08:32:49.485","vulnerabilities":[{"cve":{"id":"CVE-2026-90898","sourceIdentifier":"reefs@jfrog.com","published":"2026-09-14T11:17:08.237","lastModified":"2026-09-18T19:31:11.370","vulnStatus":"Awaiting Analysis","cveTags":[],"descriptions":[{"lang":"en","value":"Bifrost registers MCP clients through its management API. A stdio client is a command plus args. Bifrost starts that program in the gateway the moment the client is added. No MCP handshake required.\n\n\n\nThe default is governance.auth_config.is_enabled=false. Auth off means every caller is a local admin. One unauthenticated POST /api/mcp/client is enough to run a program as the Bifrost process user (appuser on the official image).\n\n\n\n transports/v2.1.0 refuses an unauthenticated stdio registration with 403. transports/v2.0.0 still allows it."}],"affected":[{"source":"reefs@jfrog.com","affectedData":[{"vendor":"maximhq","product":"Bifrost","defaultStatus":"unaffected","collectionURL":"https://github.com/maximhq/bifrost","packageName":"github.com/maximhq/bifrost/transports","modules":["transports/bifrost-http","core/mcp"],"platforms":["Linux","macOS"],"programFiles":["transports/bifrost-http/handlers/mcp.go","transports/bifrost-http/handlers/middlewares.go"],"repo":"git://github.com/maximhq/bifrost","versions":[{"version":"0","lessThan":"2.1.0","versionType":"semver","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"reefs@jfrog.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":5.9}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-09-14T11:01:44.207374Z","id":"CVE-2026-90898","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"reefs@jfrog.com","type":"Secondary","description":[{"lang":"en","value":"CWE-284"},{"lang":"en","value":"CWE-306"}]}],"references":[{"url":"https://github.com/maximhq/bifrost","source":"reefs@jfrog.com"},{"url":"https://github.com/maximhq/bifrost/commit/12e170352bd25eab1ae9ba16611f1797d1fd8fdc","source":"reefs@jfrog.com"},{"url":"https://github.com/maximhq/bifrost/pull/6757","source":"reefs@jfrog.com"},{"url":"https://github.com/maximhq/bifrost/releases/tag/transports/v2.1.0","source":"reefs@jfrog.com"}]}}]}