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CVE-2026-21999

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 Bas
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:661163ce06656d3ba79a6456e6ad5dd06c2cc9fae47642ca7ed980f0a5496b7c
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-200","description":"CWE-200 Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6a81a43a79dd6f716a41020ee9e693329fbfbac7af770937c9baebeb222dce3e · sha256:19cbc202d3da9b9f… · /containers/adp/0/problemTypes/0/descriptions/0

{"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.","lang":"en-US"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6a81a43a79dd6f716a41020ee9e693329fbfbac7af770937c9baebeb222dce3e · sha256:19cbc202d3da9b9f… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"Oracle Database Server","vendor":"Oracle Corporation","versions":[{"lessThanOrEqual":"23.26.1","status":"affected","version":"23.4.0","versionType":"custom"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6a81a43a79dd6f716a41020ee9e693329fbfbac7af770937c9baebeb222dce3e · sha256:19cbc202d3da9b9f… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6a81a43a79dd6f716a41020ee9e693329fbfbac7af770937c9baebeb222dce3e · sha256:19cbc202d3da9b9f… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-200","description":"CWE-200 Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6a81a43a79dd6f716a41020ee9e693329fbfbac7af770937c9baebeb222dce3e · sha256:19cbc202d3da9b9f… · /containers/adp/0/problemTypes/0/descriptions/0
{"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.","lang":"en-US"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6a81a43a79dd6f716a41020ee9e693329fbfbac7af770937c9baebeb222dce3e · sha256:19cbc202d3da9b9f… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"Oracle Advisory","tags":["vendor-advisory"],"url":"https://www.oracle.com/security-alerts/cpuapr2026.html"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6a81a43a79dd6f716a41020ee9e693329fbfbac7af770937c9baebeb222dce3e · sha256:19cbc202d3da9b9f… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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