CVEvulnerability

CVE-2026-62264

7.5 HIGH EPSS 0.45% Published 2026-10-30 Modified 2026-10-30 Official page ↗

Exploitation and prioritisation

EPSS
0.45% chance of exploitation in the next 30 days · in the top 60.7% of all CVEs (2026-11-03)
EU Vulnerability Database
EUVD-2026-114317

Affected packages

EcosystemPackageVulnerableFixed inAdvisory
npm@sylphx/pdf-reader-mcp>= 2.2.0, < 3.0.13.0.1GHSA-q344-5v34-gm84
Status
Deferred
Published
2026-10-30
Last modified
2026-10-30
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-200, CWE-287, CWE-306

Description

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.

Related

Weakness · CWE (3)

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness
  • CWE-287 Improper Authentication weakness
  • CWE-306 Missing Authentication for Critical Functionality weakness

Referenced by GitHub Advisory · alias (1)

  • GHSA-q344-5v34-gm84 @sylphx/pdf-reader-mcp: HTTP transport accepts unauthenticated requests despite a configured MCP_API_KEY advisory · npm

References