{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "2.2.0"
                  },
                  {
                    "fixed": "3.0.1"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StringRangeExpression"
              },
              {
                "range": [
                  {
                    "fixed": "4c35f72862d729301e3912ab8c8317d2828cf4c2"
                  }
                ],
                "source": "REFERENCES_COMMIT"
              }
            ]
          },
          "events": [
            {
              "introduced": "bccf19f52bc094853def1677181f5e8547763cdd"
            },
            {
              "fixed": "2eec9064a330cc40d302639ad14e8d53e1d85827"
            },
            {
              "fixed": "4c35f72862d729301e3912ab8c8317d2828cf4c2"
            }
          ],
          "repo": "https://github.com/sylphxai/anymd",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-q344-5v34-gm84"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-200",
      "CWE-287",
      "CWE-306"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62264.json"
  },
  "details": "PDF Reader MCP is a Model Context Protocol server for reading PDF documents. In versions 2.2.0 and later prior to 3.0.1, when `MCP_TRANSPORT=http` enables the opt-in HTTP server, `@sylphx/pdf-reader-mcp` reads `MCP_API_KEY` and logs that `X-API-Key` authentication is enabled but never validates the `X-API-Key` header on incoming requests. The `/mcp` endpoint consequently accepts unauthenticated clients. With the default bind address of `0.0.0.0`, any client able to reach the port can invoke every PDF tool and read any PDF the server process can open on the host, despite the misleading authentication-enabled startup log. URL-based sources additionally permit limited server-side request forgery; private and loopback destinations are blocked by default unless `--allow-private-ips` is set. The default `stdio` transport is unaffected. This issue is fixed in version 3.0.1.",
  "id": "CVE-2026-62264",
  "modified": "2026-10-31T10:31:06.979243050Z",
  "published": "2026-10-30T18:32:18.093Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62264.json"
    },
    {
      "type": "FIX",
      "url": "https://github.com/SylphxAI/anymd/commit/4c35f72862d729301e3912ab8c8317d2828cf4c2"
    },
    {
      "type": "FIX",
      "url": "https://github.com/SylphxAI/anymd/pull/332"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/SylphxAI/anymd/security/advisories/GHSA-q344-5v34-gm84"
    },
    {
      "type": "WEB",
      "url": "https://github.com/SylphxAI/anymd/tree/v3.0.1"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-62264"
    }
  ],
  "schema_version": "1.9.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "PDF Reader MCP: HTTP transport accepts unauthenticated requests despite a configured MCP_API_KEY"
}