{"containers":{"cna":{"affected":[{"product":"fleet","vendor":"fleetdm","versions":[{"status":"affected","version":"< 3.5.1"}]}],"descriptions":[{"lang":"en","value":"Fleet is an open source osquery manager. In Fleet before version 3.5.1, due to issues in Go's standard library XML parsing, a valid SAML response may be mutated by an attacker to modify the trusted document. This can result in allowing unverified logins from a SAML IdP. Users that configure Fleet with SSO login may be vulnerable to this issue. This issue is patched in 3.5.1. The fix was made using https://github.com/mattermost/xml-roundtrip-validator If upgrade to 3.5.1 is not possible, users should disable SSO authentication in Fleet."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":10,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-290","description":"CWE-290: Authentication Bypass by Spoofing","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2020-12-17T19:40:14.000Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"references":[{"tags":["x_refsource_CONFIRM"],"url":"https://github.com/fleetdm/fleet/security/advisories/GHSA-w3wf-cfx3-6gcx"},{"tags":["x_refsource_MISC"],"url":"https://github.com/fleetdm/fleet/commit/57812a532e5f749c8e18c6f6a652eca65c083607"},{"tags":["x_refsource_MISC"],"url":"https://github.com/fleetdm/fleet/blob/master/CHANGELOG.md#fleet-351-dec-14-2020"},{"tags":["x_refsource_MISC"],"url":"https://github.com/mattermost/xml-roundtrip-validator"},{"tags":["x_refsource_MISC"],"url":"https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities"}],"source":{"advisory":"GHSA-w3wf-cfx3-6gcx","discovery":"UNKNOWN"},"title":"SAML authentication vulnerability in Fleet","x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"security-advisories@github.com","ID":"CVE-2020-26276","STATE":"PUBLIC","TITLE":"SAML authentication vulnerability in Fleet"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"fleet","version":{"version_data":[{"version_value":"< 3.5.1"}]}}]},"vendor_name":"fleetdm"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Fleet is an open source osquery manager. 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