CVE-2026-18499

Full vulnerability record from the local CVENow database.

Description

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 is vulnerable to a privilege escalation when using Liberty collectives.

Severity

HIGH

CVSS score

8.1 (v3.1)

Vulnerability status

Analyzed

Source identifier

[email protected]

Published

2026-08-12 17:17:25.650000

Last modified

2026-10-23 20:10:00.160000

View original CVE JSON

{
  "id": "CVE-2026-18499",
  "sourceIdentifier": "[email protected]",
  "published": "2026-08-12T17:17:25.650",
  "lastModified": "2026-10-23T20:10:00.160",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 is vulnerable to a privilege escalation when using Liberty collectives."
    },
    {
      "lang": "es",
      "value": "IBM WebSphere Servidor de Aplicaciones - Liberty 17.0.0.3 hasta 26.0.0.8 es vulnerable a una escalada de privilegios al usar colectivos de Liberty."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "IBM",
          "product": "WebSphere Application Server - Liberty",
          "cpes": [
            "cpe:2.3:a:ibm:websphere_application_server_liberty:17.0.0.3:*:*:*:*:*:*:*",
            "cpe:2.3:a:ibm:websphere_application_server_liberty:26.0.0.8:*:*:*:*:*:*:*"
          ],
          "versions": [
            {
              "version": "17.0.0.3",
              "lessThanOrEqual": "26.0.0.8",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.2
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-08-12T00:00:00+00:00",
          "id": "CVE-2026-18499",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-285"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:ibm:websphere_application_server:*:*:*:*:liberty:*:*:*",
              "versionStartIncluding": "17.0.0.3",
              "versionEndExcluding": "26.0.0.9",
              "matchCriteriaId": "074A25F3-5715-4728-B9B9-A55FDEAA032C"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://www.ibm.com/support/pages/node/7283489",
      "source": "[email protected]",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}