gcdRadar
archive/Patch now/AIR-2026-1676
closedclosed 30 Oct 2026Patch now2 Disclosed vulnerabilityAI

CVE-2026-62264: PDF Reader MCP Authentication Bypass Flaw

PDF Reader MCP

PDF Reader MCP versions 2.2.0 through 3.0.0 fail to validate the X-API-Key header when the HTTP server transport is enabled. Unauthenticated clients can invoke all PDF tools and read accessible files on the host.

why this severityDisclosed vulnerability with a security advisory and a fix available.

disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why

CVSS
7.5
EPSS
<0.01 · top 61% · 2026-11-13
EPSS scores by FIRST
fix status
Patched
affected
@sylphx/pdf-reader-mcp >=2.2.0, <3.0.1
fixed in
@sylphx/pdf-reader-mcp 3.0.1
first report
30 Oct 2026
last update
30 Oct 2026
CVE ids
CVE-2026-62264other records

What to do

Update PDF Reader MCP to version 3.0.1 or later.

Timeline · 1

  1. 30 Oct 2026CVE-2026-62264: PDF Reader MCP is a Model Context Protocol server for reading PDF documents.

Sources · 1

Advisories and databases

  1. 2026-10-30
    CVE-2026-62264: PDF Reader MCP is a Model Context Protocol server for reading PDF documents.
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-62264

Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.

Classification

lane
Patch now
AI role
Attack on AI
categories
Infrastructure vulnerability
severity
2 · Disclosed vulnerability
fix status
Patched
targets
Framework / tooling
owasp llm top 10
LLM03:2025 Supply Chain
mitre atlas
no technique for these categories
tags
mcpauthentication-bypass
dates
happened 30 Oct 2026 · first reported 30 Oct 2026
origin
NVD
Vulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
record
confidence 0.90 · created 2026-10-30 23:21Z · updated 2026-10-30 23:21Z

Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned

Copy a brief

This record as a short Markdown brief, for a ticket, a chat or a coding agent.

the brief as text
# CVE-2026-62264: PDF Reader MCP Authentication Bypass Flaw

https://gcdradar.vercel.app/incidents/cve-2026-62264-pdf-reader-mcp-authentication-bypass-flaw · AIR-2026-1676 · closed 2026-10-30

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability): Disclosed vulnerability with a security advisory and a fix available.
- Fix status: Patched
- First reported: 2026-10-30
- AI role: Attack on AI
- Products: PDF Reader MCP
- CVE ids: CVE-2026-62264
- CVSS: 7.5

## Summary

PDF Reader MCP versions 2.2.0 through 3.0.0 fail to validate the X-API-Key header when the HTTP server transport is enabled. Unauthenticated clients can invoke all PDF tools and read accessible files on the host.

## What to do

Update PDF Reader MCP to version 3.0.1 or later.

## Affected and fixed versions

- Affected: @sylphx/pdf-reader-mcp >=2.2.0, <3.0.1
- Fixed in: @sylphx/pdf-reader-mcp 3.0.1

## Latest updates

- 2026-10-30: CVE-2026-62264: PDF Reader MCP is a Model Context Protocol server for reading PDF documents. (https://nvd.nist.gov/vuln/detail/CVE-2026-62264)

## Sources

- 2026-10-30 NVD: CVE-2026-62264: PDF Reader MCP is a Model Context Protocol server for reading PDF documents. https://nvd.nist.gov/vuln/detail/CVE-2026-62264

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.

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