{"id":"CVE-2026-62264","summary":"PDF Reader MCP: HTTP transport accepts unauthenticated requests despite a configured MCP_API_KEY","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.","aliases":["GHSA-q344-5v34-gm84"],"modified":"2026-10-31T10:46:13.278809683Z","published":"2026-10-30T18:32:18.093Z","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"},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/sylphxai/anymd","events":[{"introduced":"bccf19f52bc094853def1677181f5e8547763cdd"},{"fixed":"2eec9064a330cc40d302639ad14e8d53e1d85827"},{"fixed":"4c35f72862d729301e3912ab8c8317d2828cf4c2"}],"database_specific":{"extracted_events":[{"source":"AFFECTED_FIELD","strategy":"StringRangeExpression","range":[{"introduced":"2.2.0"},{"fixed":"3.0.1"}]},{"range":[{"fixed":"4c35f72862d729301e3912ab8c8317d2828cf4c2"}],"source":"REFERENCES_COMMIT"}]}}],"versions":["v3.0.0","v2.7.2","v2.7.1","v2.7.0","v2.6.0","v2.5.4","v2.5.3","v2.5.2","v2.5.1","v2.5.0","v2.4.3","v2.4.2","v2.4.1","v2.4.0","v2.3.1","v2.3.0","v2.2.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-62264.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}