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2026-10-20 21:26CVE-2026-91662oracle
PUBLISHED5.2

Vulnerability in Oracle Essbase (component: Java Based Agent). The supported version that is affected is 21.8.3.0.0. Difficult to exploit vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Essbase executes to compromise Oracle Essbase. While the vulnerability is in Oracle Essbase, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Essbase accessible data as well as unauthorized update, insert or delete access to some of Oracle Essbase accessible data. CVSS 3.1 Base Score 6.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N).

Problem type

  • Difficult to exploit vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Essbase executes to compromise Oracle Essbase. While the vulnerability is in Oracle Essbase, attacks may significantly impact additional products (scope change). Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Essbase accessible data as well as unauthorized update, insert or delete access to some of Oracle Essbase accessible data.

Affected products

Oracle Corporation

Oracle Essbase

21.8.3.0.0 - AFFECTED

References

Oracle Advisory

https://www.oracle.com/security-alerts/cpuoct2026.html

vendor-advisory

JSON source

https://cveawg.mitre.org/api/cve/CVE-2026-91662
Click to expand
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  "cveMetadata": {
    "cveId": "CVE-2026-91662",
    "assignerOrgId": "43595867-4340-4103-b7a2-9a5208d29a85",
    "assignerShortName": "oracle",
    "dateUpdated": "2026-10-20T21:26:55.186Z",
    "dateReserved": "2026-09-14T22:10:16.651Z",
    "datePublished": "2026-10-20T21:26:55.186Z",
    "state": "PUBLISHED"
  },
  "containers": {
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      "providerMetadata": {
        "orgId": "43595867-4340-4103-b7a2-9a5208d29a85",
        "shortName": "oracle",
        "dateUpdated": "2026-10-20T21:26:55.186Z"
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      "descriptions": [
        {
          "lang": "en-US",
          "value": "Vulnerability in Oracle Essbase (component: Java Based Agent).   The supported version that is affected is 21.8.3.0.0. Difficult to exploit vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Essbase executes to compromise Oracle Essbase.  While the vulnerability is in Oracle Essbase, attacks may significantly impact additional products (scope change).  Successful attacks of this vulnerability can result in  unauthorized access to critical data or complete access to all Oracle Essbase accessible data as well as  unauthorized update, insert or delete access to some of Oracle Essbase accessible data. CVSS 3.1 Base Score 6.4 (Confidentiality and Integrity impacts).  CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N)."
        }
      ],
      "affected": [
        {
          "vendor": "Oracle Corporation",
          "product": "Oracle Essbase",
          "versions": [
            {
              "version": "21.8.3.0.0",
              "status": "affected",
              "versionType": "semver"
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          "descriptions": [
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              "lang": "en-US",
              "description": "Difficult to exploit vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Essbase executes to compromise Oracle Essbase.  While the vulnerability is in Oracle Essbase, attacks may significantly impact additional products (scope change).  Successful attacks of this vulnerability can result in  unauthorized access to critical data or complete access to all Oracle Essbase accessible data as well as  unauthorized update, insert or delete access to some of Oracle Essbase accessible data."
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://www.oracle.com/security-alerts/cpuoct2026.html",
          "name": "Oracle Advisory",
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            "attackVector": "LOCAL",
            "attackComplexity": "HIGH",
            "privilegesRequired": "LOW",
            "userInteraction": "NONE",
            "scope": "CHANGED",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "availabilityImpact": "NONE",
            "baseScore": 6.4,
            "baseSeverity": "MEDIUM"
          }
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}