CVE-2026-62264
Dashboard / Vulnerabilities / 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.
References: https://github.com/SylphxAI/anymd/tree/v3.0.1, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62264.json, https://github.com/SylphxAI/anymd/security/advisories/GHSA-q344-5v34-gm84, https://nvd.nist.gov/vuln/detail/CVE-2026-62264, https://github.com/SylphxAI/anymd/commit/4c35f72862d729301e3912ab8c8317d2828cf4c2, https://github.com/SylphxAI/anymd/pull/332
Affected packages
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