CVE-2026-62264 PDF Reader MCP - Authentication Bypass

PDF Reader MCP 2.2.0 to < 3.0.1 contains an authentication bypass caused by missing validation of X-API-Key header in HTTP server, letting unauthenticated clients access PDF tools and read files, exploit requires HTTP transport enabled.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.45% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authentication Bypass
Impact
Information Disclosure, Server Side Request Forgery
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
30 October 2026
Updated
1 November 2026
Weakness
CWE-200

Vendor fix

Upgrade to version 3.0.1 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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