{"id":"CVE-2025-27509","state":"PUBLISHED","title":"SAML authentication vulnerability due to improper SAML response validation","description":"fleetdm/fleet is an open source device management, built on osquery. In vulnerable versions of Fleet, an attacker could craft a specially-formed SAML response to forge authentication assertions, provision a new administrative user account if Just-In-Time (JIT) provisioning is enabled, or create new accounts tied to forged assertions if f MDM enrollment is enabled. This vulnerability is fixed in 4.64.2, 4.63.2, 4.62.4, and 4.58.1.","publishedAt":"2025-03-06T19:00:36.098Z","updatedAt":"2025-03-06T19:29:47.248Z","severity":{"score":9.3,"label":"Critical","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["fleetdm fleet"],"affected":[{"vendor":"fleetdm","product":"fleet","versions":[{"version":">= 4.64.0, < 4.64.2","status":"affected"},{"version":">= 4.63.0, < 4.63.2","status":"affected"},{"version":">= 4.62.0, < 4.62.4","status":"affected"},{"version":"< 4.58.1","status":"affected"}]}],"references":["https://github.com/fleetdm/fleet/security/advisories/GHSA-52jx-g6m5-h735","https://github.com/fleetdm/fleet/commit/718c95e47ad010ad6b8ceb3f3460e921fbfc53bb"],"weaknesses":["CWE-285"],"ingestedAt":"2026-10-29T20:08:47.682Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/27xxx/CVE-2025-27509.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-27509","state":"PUBLISHED","datePublished":"2025-03-06T19:00:36.098Z","dateUpdated":"2025-03-06T19:29:47.248Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2025-02-26T18:11:52.306Z"},"containers":{"cna":{"title":"SAML authentication vulnerability due to improper SAML response validation","descriptions":[{"lang":"en","value":"fleetdm/fleet is an open source device management, built on osquery. In vulnerable versions of Fleet, an attacker could craft a specially-formed SAML response to forge authentication assertions, provision a new administrative user account if Just-In-Time (JIT) provisioning is enabled, or create new accounts tied to forged assertions if f MDM enrollment is enabled. This vulnerability is fixed in 4.64.2, 4.63.2, 4.62.4, and 4.58.1."}],"affected":[{"vendor":"fleetdm","product":"fleet","versions":[{"version":">= 4.64.0, < 4.64.2","status":"affected"},{"version":">= 4.63.0, < 4.63.2","status":"affected"},{"version":">= 4.62.0, < 4.62.4","status":"affected"},{"version":"< 4.58.1","status":"affected"}]}],"references":[{"url":"https://github.com/fleetdm/fleet/security/advisories/GHSA-52jx-g6m5-h735","name":"https://github.com/fleetdm/fleet/security/advisories/GHSA-52jx-g6m5-h735","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/fleetdm/fleet/commit/718c95e47ad010ad6b8ceb3f3460e921fbfc53bb","name":"https://github.com/fleetdm/fleet/commit/718c95e47ad010ad6b8ceb3f3460e921fbfc53bb","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":9.3,"baseSeverity":"CRITICAL","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-285","lang":"en","description":"CWE-285: Improper Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2025-03-06T19:00:36.098Z"},"source":{"advisory":"GHSA-52jx-g6m5-h735","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-03-06T19:29:18.572033Z","id":"CVE-2025-27509","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-03-06T19:29:47.248Z"}}]}}}