{"id":"CVE-2026-108771","state":"PUBLISHED","title":"Apache Kylin: unauthenticated broadcast API and polymorphic deserialization","description":"Missing authentication for in-house broadcast and polymorphic deserialization vulnerability in Apache Kylin. Impact most to the kylin services that are directly exposed to public network, which is not common. In-house kylin deployments are mostly not impacted.\n\n\n\nThis issue affects Apache Kylin: from 4.0.0 through 5.0.4.\n\n\n\nUsers are recommended to upgrade to version 5.0.5, which fixes the issue.","publishedAt":"2026-10-19T09:20:59.076Z","updatedAt":"2026-10-30T16:31:42.241Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"apache","products":["Apache Software Foundation Apache Kylin"],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Kylin","defaultStatus":"unaffected","versions":[{"version":"4.0.0","status":"affected","lessThanOrEqual":"5.0.4","versionType":"semver"}]}],"references":["https://lists.apache.org/thread.html/d77s7dh3bxf02l4rjbgb6807g605zskx","http://www.openwall.com/lists/oss-security/2026/10/16/16"],"weaknesses":["CWE-306"],"ingestedAt":"2026-10-30T16:46:06.675Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/108xxx/CVE-2026-108771.json","commit":"3cf5ba03e4cbb8914db61a64f787b6e810184617","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-108771","state":"PUBLISHED","datePublished":"2026-10-19T09:20:59.076Z","dateUpdated":"2026-10-30T16:31:42.241Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2026-10-11T07:26:14.371Z"},"containers":{"cna":{"title":"Apache Kylin: unauthenticated broadcast API and polymorphic deserialization","descriptions":[{"lang":"en","value":"Missing authentication for in-house broadcast and polymorphic deserialization vulnerability in Apache Kylin. Impact most to the kylin services that are directly exposed to public network, which is not common. In-house kylin deployments are mostly not impacted.\n\n\n\nThis issue affects Apache Kylin: from 4.0.0 through 5.0.4.\n\n\n\nUsers are recommended to upgrade to version 5.0.5, which fixes the issue."}],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Kylin","defaultStatus":"unaffected","versions":[{"version":"4.0.0","status":"affected","lessThanOrEqual":"5.0.4","versionType":"semver"}]}],"references":[{"url":"https://lists.apache.org/thread.html/d77s7dh3bxf02l4rjbgb6807g605zskx","tags":["vendor-advisory"]}],"metrics":[{"other":{"type":"Textual description of severity","content":{"text":"moderate"}},"scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-306","description":"CWE-306 Missing authentication for critical function","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"apache","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateUpdated":"2026-10-19T09:20:59.076Z"},"source":{"discovery":"UNKNOWN"},"credits":[{"lang":"en","value":"MopMonk-AI","type":"finder"},{"lang":"en","value":"Wanxin Yin","type":"finder"},{"lang":"en","value":"Dilrevx","type":"finder"}],"x_generator":{"engine":"Vulnogram 1.0.3"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/10/16/16"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-10-19T10:11:50.298Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":9.8,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-10-30T16:31:27.415759Z","id":"CVE-2026-108771","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":"2026-10-30T16:31:42.241Z"}}]}}}