{"id":"CVE-2026-21999","state":"PUBLISHED","title":"Vulnerability in the XML Database component of Oracle Database Server.  Supported versions that are affected are 23.4.0-23.26.1. Difficult to exploit vulnerability allows unauthent","description":"Vulnerability in the XML Database component of Oracle Database Server.  Supported versions that are affected are 23.4.0-23.26.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTPS to compromise XML Database.  Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in  unauthorized access to critical data or complete access to all XML Database accessible data. CVSS 3.1 Base Score 5.3 (Confidentiality impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N).","publishedAt":"2026-04-21T20:34:59.782Z","updatedAt":"2026-04-22T14:04:56.332Z","severity":{"score":5.3,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","source":"oracle"},"assigner":"oracle","products":["Oracle Corporation Oracle Database Server"],"affected":[{"vendor":"Oracle Corporation","product":"Oracle Database Server","versions":[{"version":"23.4.0","status":"affected","lessThanOrEqual":"23.26.1","versionType":"custom"}]}],"references":["https://www.oracle.com/security-alerts/cpuapr2026.html"],"weaknesses":["CWE-200"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/21xxx/CVE-2026-21999.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-21999","state":"PUBLISHED","datePublished":"2026-04-21T20:34:59.782Z","dateUpdated":"2026-04-22T14:04:56.332Z","assignerShortName":"oracle","assignerOrgId":"43595867-4340-4103-b7a2-9a5208d29a85","dateReserved":"2026-01-05T18:07:34.724Z"},"containers":{"cna":{"descriptions":[{"lang":"en-US","value":"Vulnerability in the XML Database component of Oracle Database Server.  Supported versions that are affected are 23.4.0-23.26.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTPS to compromise XML Database.  Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in  unauthorized access to critical data or complete access to all XML Database accessible data. CVSS 3.1 Base Score 5.3 (Confidentiality impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N)."}],"affected":[{"vendor":"Oracle Corporation","product":"Oracle Database Server","versions":[{"version":"23.4.0","status":"affected","lessThanOrEqual":"23.26.1","versionType":"custom"}]}],"references":[{"url":"https://www.oracle.com/security-alerts/cpuapr2026.html","name":"Oracle Advisory","tags":["vendor-advisory"]}],"metrics":[{"cvssV3_1":{"attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE","version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","baseScore":5.3,"baseSeverity":"MEDIUM"}}],"problemTypes":[{"descriptions":[{"lang":"en-US","description":"Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTPS to compromise XML Database.  Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in  unauthorized access to critical data or complete access to all XML Database accessible data."}]}],"providerMetadata":{"shortName":"oracle","orgId":"43595867-4340-4103-b7a2-9a5208d29a85","dateUpdated":"2026-04-21T20:34:59.782Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:oracle:database_-_xml_database:*:*:*:*:*:*:*:*","versionStartIncluding":"23.4.0","versionEndIncluding":"23.26.1"}]}]}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-22T14:04:52.440323Z","id":"CVE-2026-21999","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-200","type":"CWE","lang":"en","description":"CWE-200 Exposure of Sensitive Information to an Unauthorized Actor"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-04-22T14:04:56.332Z"}}]}}}