CVE-2026-18893

Full vulnerability record from the local CVENow database.

Description

IBM CockroachDB PostgreSQL for IBM VPC 26.2.0 through 26.2.3, 25.4.0 through 25.4.12, and 25.2.0 through 25.2.20 is vulnerable to privilege escalation via user-defined function.

Severity

HIGH

CVSS score

7.1 (v3.1)

Vulnerability status

Awaiting Analysis

Source identifier

[email protected]

Published

2026-11-08 19:17:38.380000

Last modified

2026-11-08 19:17:38.500000

View original CVE JSON

{
  "id": "CVE-2026-18893",
  "sourceIdentifier": "[email protected]",
  "published": "2026-11-08T19:17:38.380",
  "lastModified": "2026-11-08T19:17:38.500",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "IBM CockroachDB PostgreSQL for IBM VPC 26.2.0 through 26.2.3, 25.4.0 through 25.4.12, and 25.2.0 through 25.2.20 is vulnerable to privilege escalation via user-defined function."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "IBM",
          "product": "CockroachDB PostgreSQL for IBM VPC",
          "cpes": [
            "cpe:2.3:a:ibm:cockroachdb_postgresql_for_ibm_vpc:26.2.3:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:cockroachdb_postgresql_for_ibm_vpc:26.2.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:cockroachdb_postgresql_for_ibm_vpc:25.4.12:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:cockroachdb_postgresql_for_ibm_vpc:25.4.0:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:cockroachdb_postgresql_for_ibm_vpc:25.2.20:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:cockroachdb_postgresql_for_ibm_vpc:25.2.0:*:*:*:*:*:*:*"
          ],
          "versions": [
            {
              "version": "26.2.0",
              "lessThanOrEqual": "26.2.3",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "25.4.0",
              "lessThanOrEqual": "25.4.12",
              "versionType": "semver",
              "status": "affected"
            },
            {
              "version": "25.2.0",
              "lessThanOrEqual": "25.2.20",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.2
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-269"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://www.ibm.com/support/pages/node/7293292",
      "source": "[email protected]"
    }
  ]
}