{
  "published": "2026-07-17T00:36:08Z",
  "modified": "2026-07-30T18:27:06Z",
  "schema_version": "1.7.5",
  "id": "CGA-rrrm-8fwv-x7w3",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L"
    }
  ],
  "upstream": [
    "CVE-2026-52870",
    "GHSA-hvrp-rf83-w775"
  ],
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/modelcontextprotocol/python-sdk/releases/tag/v1.27.2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52870.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/modelcontextprotocol/python-sdk/security/advisories/GHSA-hvrp-rf83-w775"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-52870"
    },
    {
      "type": "FIX",
      "url": "https://github.com/modelcontextprotocol/python-sdk/commit/62137874ff26dd74d2fea80ff528a7fd9ca7a5e7"
    },
    {
      "type": "FIX",
      "url": "https://github.com/modelcontextprotocol/python-sdk/pull/2720"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "Chainguard",
        "name": "semgrep",
        "purl": "pkg:apk/chainguard/semgrep?arch=x86_64"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.172.0-r1"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "components": [
          {
            "component_name": "mcp",
            "component_version": "1.23.3",
            "component_type": "python",
            "component_location": "/opt/chainguard/semgrep/lib/python3.13/site-packages/mcp-1.23.3.dist-info/METADATA",
            "component_purl": "pkg:pypi/mcp@1.23.3",
            "latest_event_status": "fixed",
            "latest_event_timestamp": "2026-07-30T18:27:06Z"
          }
        ]
      }
    },
    {
      "package": {
        "ecosystem": "Wolfi",
        "name": "semgrep",
        "purl": "pkg:apk/wolfi/semgrep?arch=x86_64"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.172.0-r1"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "components": [
          {
            "component_name": "mcp",
            "component_version": "1.23.3",
            "component_type": "python",
            "component_location": "/opt/chainguard/semgrep/lib/python3.13/site-packages/mcp-1.23.3.dist-info/METADATA",
            "component_purl": "pkg:pypi/mcp@1.23.3",
            "latest_event_status": "fixed",
            "latest_event_timestamp": "2026-07-30T18:27:06Z"
          }
        ]
      }
    }
  ]
}