{
  "document": {
    "acknowledgments": [
      {
        "names": [
          "Edge Security with Microsoft"
        ]
      }
    ],
    "aggregate_severity": {
      "namespace": "https://www.microsoft.com/en-us/msrc/security-update-severity-rating-system",
      "text": "Important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Public",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en-US",
    "notes": [
      {
        "category": "general",
        "text": "To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle",
        "title": "Additional Resources"
      },
      {
        "category": "legal_disclaimer",
        "text": "The information provided in the Microsoft Knowledge Base is provided \\\"as is\\\" without warranty of any kind. Microsoft disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall Microsoft Corporation or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages, even if Microsoft Corporation or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.",
        "title": "Disclaimer"
      },
      {
        "category": "general",
        "text": "Required. The vulnerability documented by this CVE requires customer action to resolve.",
        "title": "Customer Action"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "secure@microsoft.com",
      "name": "Microsoft Security Response Center",
      "namespace": "https://msrc.microsoft.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "CVE-2026-96187 Microsoft Edge (Chromium-based) Information Disclosure Vulnerability - HTML",
        "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96187"
      },
      {
        "category": "self",
        "summary": "CVE-2026-96187 Microsoft Edge (Chromium-based) Information Disclosure Vulnerability - CSAF",
        "url": "https://msrc.microsoft.com/csaf/advisories/2026/msrc_cve-2026-96187.json"
      },
      {
        "category": "external",
        "summary": "Microsoft Exploitability Index",
        "url": "https://www.microsoft.com/en-us/msrc/exploitability-index?rtc=1"
      },
      {
        "category": "external",
        "summary": "Microsoft Support Lifecycle",
        "url": "https://support.microsoft.com/lifecycle"
      },
      {
        "category": "external",
        "summary": "Common Vulnerability Scoring System",
        "url": "https://www.first.org/cvss"
      }
    ],
    "title": "Microsoft Edge (Chromium-based) Information Disclosure Vulnerability",
    "tracking": {
      "current_release_date": "2026-10-26T07:00:00.000Z",
      "generator": {
        "date": "2026-11-03T01:25:22.062Z",
        "engine": {
          "name": "MSRC Generator",
          "version": "1.0"
        }
      },
      "id": "msrc_CVE-2026-96187",
      "initial_release_date": "2026-10-26T07:00:00.000Z",
      "revision_history": [
        {
          "date": "2026-10-26T07:00:00.000Z",
          "legacy_version": "1",
          "number": "1",
          "summary": "Information published."
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version_range",
                "name": "<155.0.4283.45",
                "product": {
                  "name": "Microsoft Edge (Chromium-based) <155.0.4283.45",
                  "product_id": "1"
                }
              },
              {
                "category": "product_version",
                "name": "155.0.4283.45",
                "product": {
                  "name": "Microsoft Edge (Chromium-based) 155.0.4283.45",
                  "product_id": "21955"
                }
              }
            ],
            "category": "product_name",
            "name": "Microsoft Edge (Chromium-based)"
          }
        ],
        "category": "vendor",
        "name": "Microsoft"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-96187",
      "cwe": {
        "id": "CWE-843",
        "name": "Access of Resource Using Incompatible Type ('Type Confusion')"
      },
      "notes": [
        {
          "category": "general",
          "text": "Microsoft",
          "title": "Assigning CNA"
        },
        {
          "category": "faq",
          "text": "An attacker who successfully exploited this vulnerability could potentially read portions of process memory.",
          "title": "What type of information could be disclosed by this vulnerability?"
        },
        {
          "category": "faq",
          "text": "This vulnerability could lead to a browser sandbox escape.",
          "title": "According to the CVSS metric, a successful exploitation could lead to a scope change (S:C). What does this mean for this vulnerability?"
        },
        {
          "category": "faq",
          "text": "The user would have to click on a specially crafted URL to be compromised by the attacker, and navigate to a malicious site where malicious code would execute a series of specially crafted queries.",
          "title": "According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?"
        }
      ],
      "product_status": {
        "fixed": [
          "21955"
        ],
        "known_affected": [
          "1"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "CVE-2026-96187 Microsoft Edge (Chromium-based) Information Disclosure Vulnerability - HTML",
          "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-96187"
        },
        {
          "category": "self",
          "summary": "CVE-2026-96187 Microsoft Edge (Chromium-based) Information Disclosure Vulnerability - CSAF",
          "url": "https://msrc.microsoft.com/csaf/advisories/2026/msrc_cve-2026-96187.json"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-10-26T07:00:00.000Z",
          "details": "155.0.4283.45:Security Update:https://learn.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security",
          "product_ids": [
            "1"
          ],
          "url": "https://learn.microsoft.com/en-us/DeployEdge/microsoft-edge-relnotes-security"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.4,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "CHANGED",
            "temporalScore": 6.4,
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C",
            "version": "3.1"
          },
          "products": [
            "1"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Information Disclosure"
        },
        {
          "category": "exploit_status",
          "details": "Publicly Disclosed:No;Exploited:No"
        }
      ],
      "title": "Microsoft Edge (Chromium-based) Information Disclosure Vulnerability"
    }
  ]
}