Security advisory

{
  "id": "0c36ef5d0d08a5732ebe17b215ac6e9665336d1462cb72e66daeb00ea39e328e",
  "url": "https://osv.dev/vulnerability/CVE-2026-81356",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-81356",
    "summary": "Inconsistent interpretation of http requests ('http request/response smuggling') in Visual Studio Code allows an unauthorized attacker to bypass a security feature over a network.",
    "evidence": "osv:CVE-2026-81356",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-81356",
      "aliases": [
        "CVE-2026-81356"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/microsoft/vscode",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "88e44fa0e00b08f7758b4f6d05632e4fd5e4df6f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:microsoft:visual_studio_code:*:*:*:*:*:-:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.136.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.136.1",
            "1.136.0",
            "1.134.0",
            "1.16.0",
            "translation/20170331.01",
            "translation/20170324.01",
            "translation/20170317.01",
            "translation/20170311.01",
            "translation/20170227.01",
            "translation/20170217.01",
            "translation/20161209.01",
            "translation/20161014.01",
            "translation/20160902.01",
            "translation/20160826.01",
            "translation/20160817.01",
            "1.1.0-insider",
            "0.10.12-insiders",
            "0.10.10-insiders",
            "0.10.7-insiders",
            "0.10.5"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-81356.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:19.942810795Z",
      "provider": "osv",
      "references": [
        "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-81356"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:microsoft:visual_studio_code:*:*:*:*:*:-:*:*"
            ],
            "vendor_product": "microsoft:visual_studio_code",
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "1.136.2"
                  },
                  {
                    "fixed": "1.136.2"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-81356",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 430150,
  "published_at": "2026-09-08T18:20:53.567+00:00"
}