{"id":"CVE-2025-66171","state":"PUBLISHED","title":"Apache CloudStack: Any user can create a new VM from backups they should not have access to","description":"The CloudStack Backup plugin has an improper access logic in versions 4.21.0.0 and 4.22.0.0. Anyone with authenticated user-account access in CloudStack 4.21.0.0+ environments, where this plugin is enabled and have access to specific APIs can create new VMs using backups of any other user of the environment.\n\nBackup plugin users using CloudStack 4.21.0.0+ are recommended to upgrade to CloudStack version 4.22.0.1, which fixes this issue.","publishedAt":"2026-05-08T12:11:03.883Z","updatedAt":"2026-05-09T06:42:59.830Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","source":"CISA-ADP"},"assigner":"apache","products":["Apache Software Foundation Apache CloudStack"],"affected":[{"vendor":"Apache Software Foundation","product":"Apache CloudStack","defaultStatus":"unaffected","versions":[{"version":"4.21.0.0","status":"affected","lessThanOrEqual":"4.22.0.0","versionType":"custom"}]}],"references":["https://lists.apache.org/thread/n8mt5b7wkpysstb8w7rr9f02kc5cq2xm","http://www.openwall.com/lists/oss-security/2026/05/09/2"],"weaknesses":["CWE-359"],"ingestedAt":"2026-10-29T20:09:56.034Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/66xxx/CVE-2025-66171.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-66171","state":"PUBLISHED","datePublished":"2026-05-08T12:11:03.883Z","dateUpdated":"2026-05-09T06:42:59.830Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2025-11-22T19:26:43.923Z"},"containers":{"cna":{"title":"Apache CloudStack: Any user can create a new VM from backups they should not have access to","descriptions":[{"lang":"en","value":"The CloudStack Backup plugin has an improper access logic in versions 4.21.0.0 and 4.22.0.0. Anyone with authenticated user-account access in CloudStack 4.21.0.0+ environments, where this plugin is enabled and have access to specific APIs can create new VMs using backups of any other user of the environment.\n\nBackup plugin users using CloudStack 4.21.0.0+ are recommended to upgrade to CloudStack version 4.22.0.1, which fixes this issue."}],"affected":[{"vendor":"Apache Software Foundation","product":"Apache CloudStack","defaultStatus":"unaffected","versions":[{"version":"4.21.0.0","status":"affected","lessThanOrEqual":"4.22.0.0","versionType":"custom"}]}],"references":[{"url":"https://lists.apache.org/thread/n8mt5b7wkpysstb8w7rr9f02kc5cq2xm","tags":["vendor-advisory"]}],"metrics":[{"other":{"content":{"text":"important"},"type":"Textual description of severity"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-359","description":"CWE-359 Exposure of Private Personal Information to an Unauthorized Actor","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"apache","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateUpdated":"2026-05-08T12:11:03.883Z"},"credits":[{"lang":"en","type":"reporter","value":"Fabricio Duarte <fabricio.duarte.jr@gmail.com>"},{"lang":"en","type":"reporter","value":"Gabriel Ortiga Fernandes <gabriel.ortiga@hotmail.com>"},{"lang":"en","type":"reporter","value":"Gabriel Pordeus Santos <gabrielpordeus@gmail.com>"}],"source":{"discovery":"INTERNAL"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":6.5,"attackVector":"NETWORK","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"NONE","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-05-08T17:55:40.846619Z","id":"CVE-2025-66171","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-08T17:55:45.706Z"}},{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/05/09/2"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-05-09T06:42:59.830Z"}}]}}}