{"id":"CVE-2026-23904","state":"PUBLISHED","title":"Apache Kyuubi: Unrestricted access via Kyuubi engine-ui proxy","description":"Kyuubi Engine UI proxy accepts a host and port from the request path and proxies HTTP requests to that destination. A remote requester with network access to the proxy can cause the Kyuubi server to send HTTP requests to arbitrary reachable hosts, resulting in SSRF or open-proxy behavior.\n\n\nThis issue affects Apache Kyuubi: from 1.8.0 before 1.12.0.\n\nUsers are recommended to upgrade to version 1.12.0, which disables the proxy by default. To restore proxied Engine UI, set kyuubi.frontend.rest.engine.ui.proxy.enabled=true and configure allowed target hosts with kyuubi.frontend.rest.engine.ui.proxy.hosts.","publishedAt":"2026-07-29T09:07:18.168Z","updatedAt":"2026-07-29T14:00:38.959Z","severity":{"score":7.3,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","source":"CISA-ADP"},"assigner":"apache","products":["Apache Software Foundation Apache Kyuubi"],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Kyuubi","packageName":"org.apache.kyuubi:kyuubi-server","defaultStatus":"unaffected","versions":[{"version":"1.8.0","status":"affected","lessThan":"1.12.0","versionType":"semver"}],"collectionURL":"https://repo.maven.apache.org/maven2"}],"references":["https://github.com/apache/kyuubi/pull/7483","https://lists.apache.org/thread/ps79fcfx49ox9kwgztc5t5bw0tyhck9m","http://www.openwall.com/lists/oss-security/2026/07/29/3"],"weaknesses":["CWE-923"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/23xxx/CVE-2026-23904.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23904","state":"PUBLISHED","datePublished":"2026-07-29T09:07:18.168Z","dateUpdated":"2026-07-29T14:00:38.959Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2026-01-19T03:40:46.158Z"},"containers":{"cna":{"title":"Apache Kyuubi: Unrestricted access via Kyuubi engine-ui proxy","descriptions":[{"lang":"en","value":"Kyuubi Engine UI proxy accepts a host and port from the request path and proxies HTTP requests to that destination. A remote requester with network access to the proxy can cause the Kyuubi server to send HTTP requests to arbitrary reachable hosts, resulting in SSRF or open-proxy behavior.\n\n\nThis issue affects Apache Kyuubi: from 1.8.0 before 1.12.0.\n\nUsers are recommended to upgrade to version 1.12.0, which disables the proxy by default. To restore proxied Engine UI, set kyuubi.frontend.rest.engine.ui.proxy.enabled=true and configure allowed target hosts with kyuubi.frontend.rest.engine.ui.proxy.hosts."}],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Kyuubi","packageName":"org.apache.kyuubi:kyuubi-server","defaultStatus":"unaffected","versions":[{"version":"1.8.0","status":"affected","lessThan":"1.12.0","versionType":"semver"}],"collectionURL":"https://repo.maven.apache.org/maven2"}],"references":[{"url":"https://github.com/apache/kyuubi/pull/7483","tags":["patch"]},{"url":"https://lists.apache.org/thread/ps79fcfx49ox9kwgztc5t5bw0tyhck9m","tags":["vendor-advisory"]}],"metrics":[{"other":{"content":{"text":"moderate"},"type":"Textual description of severity"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-923","description":"CWE-923 Improper Restriction of Communication Channel to Intended Endpoints","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"apache","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateUpdated":"2026-07-29T09:07:18.168Z"},"credits":[{"lang":"en","type":"reporter","value":"Ícaro Torres"}],"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/07/29/3"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-07-29T09:58:41.805Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.3,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","integrityImpact":"LOW","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"LOW","privilegesRequired":"NONE","confidentialityImpact":"LOW"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-07-29T14:00:33.613216Z","id":"CVE-2026-23904","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-29T14:00:38.959Z"}}]}}}