CVE-2026-91530

Status: Awaiting AnalysisMedium (4.4)—

Severity4.4Medium · CVSS 3.1

Exploitation probability0.25 %higher than 15% of CVEs

Active exploitationNonot in the CISA catalog

Public exploitNot knownno public code found

Vulnerability in Oracle GoldenGate (component: Admin Client Executable). Supported versions that are affected are 23.4-23.26.2.0.0. Difficult to exploit vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle GoldenGate. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle GoldenGate accessible data. CVSS 3.1 Base Score 4.4 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N).

CVSS

Base score: 4.4
Version: 3.1
Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N

Exploitation probability (EPSS)

Probability of exploitation in the next 30 days: 0.25 %
Percentile among all scored CVEs: 15
Score date: 10/21/2026

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

ExploitationT1210 Exploitation of Remote Serviceslateral movement85 %
Primary impactT1005 Data from Local Systemcollection60 %

Vector CVSS AV:N con PR:H (privilegios altos por red vía HTTP) indica T1210; el texto solo menciona acceso no autorizado a datos críticos, sin ejecución ni credenciales.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

ATT&CK mitigations that cover these techniques

Vulnerability Scanning Threat Intelligence Program Privileged Account Management Network Segmentation Disable or Remove Feature or Program Application Isolation and Sandboxing

Affected technologies (1)

⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.

Oracle — Goldengate^AI

References

Show 1 references

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

Raw JSON (NVD)

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{
  "id": "CVE-2026-91530",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "secalert_us@oracle.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 4.4,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 0.7
      }
    ]
  },
  "affected": [
    {
      "source": "secalert_us@oracle.com",
      "affectedData": [
        {
          "vendor": "Oracle Corporation",
          "product": "Oracle GoldenGate",
          "versions": [
            {
              "status": "affected",
              "version": "23.4",
              "versionType": "custom",
              "lessThanOrEqual": "23.26.2.0.0"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-10-20T22:20:56.837",
  "references": [
    {
      "url": "https://www.oracle.com/security-alerts/cpuoct2026.html",
      "source": "secalert_us@oracle.com"
    }
  ],
  "vulnStatus": "Awaiting Analysis",
  "descriptions": [
    {
      "lang": "en",
      "value": "Vulnerability in Oracle GoldenGate (component: Admin Client Executable).  Supported versions that are affected are 23.4-23.26.2.0.0. Difficult to exploit vulnerability allows high privileged attacker with network access via HTTP to compromise Oracle GoldenGate.  Successful attacks of this vulnerability can result in  unauthorized access to critical data or complete access to all Oracle GoldenGate accessible data. CVSS 3.1 Base Score 4.4 (Confidentiality impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N)."
    }
  ],
  "lastModified": "2026-10-21T18:44:55.490",
  "sourceIdentifier": "secalert_us@oracle.com"
}