cve-2026-87291

{
  "cvss": 5.3,
  "datePublished": "2026-10-20T22:20:06.047",
  "dateUpdated": "2026-10-27T19:17:31.040",
  "description": "Vulnerability in Oracle Java SE (component: Networking).  Supported versions that are affected are Oracle Java SE: 21.0.12.1, 25.0.4.1 and  27. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE.  Successful attacks of this vulnerability can result in  unauthorized read access to a subset of Oracle Java SE accessible data. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVSS 3.1 Base Score 5.3 (Confidentiality impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).",
  "id": "CVE-2026-87291",
  "raw": {
    "affected": [
      {
        "affectedData": [
          {
            "product": "Oracle Java SE",
            "vendor": "Oracle Corporation",
            "versions": [
              {
                "status": "affected",
                "version": "21.0.12.1"
              },
              {
                "status": "affected",
                "version": "25.0.4.1"
              },
              {
                "status": "affected",
                "version": "27"
              }
            ]
          }
        ],
        "source": "secalert_us@oracle.com"
      }
    ],
    "cveTags": [],
    "descriptions": [
      {
        "lang": "en",
        "value": "Vulnerability in Oracle Java SE (component: Networking).  Supported versions that are affected are Oracle Java SE: 21.0.12.1, 25.0.4.1 and  27. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE.  Successful attacks of this vulnerability can result in  unauthorized read access to a subset of Oracle Java SE accessible data. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVSS 3.1 Base Score 5.3 (Confidentiality impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)."
      }
    ],
    "id": "CVE-2026-87291",
    "lastModified": "2026-10-27T19:17:31.040",
    "metrics": {
      "cvssMetricV31": [
        {
          "cvssData": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 1.4,
          "source": "secalert_us@oracle.com",
          "type": "Secondary"
        }
      ],
      "ssvcV203": [
        {
          "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "ssvcData": {
            "id": "CVE-2026-87291",
            "options": [
              {
                "exploitation": "none"
              },
              {
                "automatable": "yes"
              },
              {
                "technicalImpact": "partial"
              }
            ],
            "role": "CISA Coordinator",
            "timestamp": "2026-10-27T18:52:31.288192Z",
            "version": "2.0.3"
          }
        }
      ]
    },
    "published": "2026-10-20T22:20:06.047",
    "references": [
      {
        "source": "secalert_us@oracle.com",
        "url": "https://www.oracle.com/security-alerts/cpuoct2026.html"
      }
    ],
    "sourceIdentifier": "secalert_us@oracle.com",
    "vulnStatus": "Awaiting Analysis",
    "weaknesses": [
      {
        "description": [
          {
            "lang": "en",
            "value": "CWE-287"
          }
        ],
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "severity": "MEDIUM",
  "source": "nvd",
  "title": "Vulnerability in Oracle Java SE (component: Networking)"
}