{"id":"CVE-2026-62264","sourceIdentifier":"security-advisories@github.com","published":"2026-10-30T19:18:32.827","lastModified":"2026-10-30T19:39:14.897","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"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."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"SylphxAI","product":"pdf-reader-mcp","versions":[{"version":">= 2.2.0, < 3.0.1","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":3.6}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Primary","description":[{"lang":"en","value":"CWE-200"},{"lang":"en","value":"CWE-287"},{"lang":"en","value":"CWE-306"}]}],"references":[{"url":"https://github.com/SylphxAI/anymd/commit/4c35f72862d729301e3912ab8c8317d2828cf4c2","source":"security-advisories@github.com"},{"url":"https://github.com/SylphxAI/anymd/pull/332","source":"security-advisories@github.com"},{"url":"https://github.com/SylphxAI/anymd/security/advisories/GHSA-q344-5v34-gm84","source":"security-advisories@github.com"},{"url":"https://github.com/SylphxAI/anymd/tree/v3.0.1","source":"security-advisories@github.com"}]}