CVE-2026-11624

Katalog CVE

CVSS 9.4 · Critical EPSS 0,22%

Kerentanan Origin Validation Error. Skor CVSS 4.0 9.4 (Critical) menurut google.com.

Deskripsi (NVD)

The Model Context Protocol has a security warning advising servers to validate the "Origin" header on all incoming connections to prevent DNS rebinding attacks. Prior to the v0.25.0 release, users had no way to validate the origin's host. In v0.25.0, a new "--allowed-hosts" flag was introduced alongside the existing "--allowed-origins" flag, enabling users to specify permitted hosts at server startup. Both flags default to "*", allowing users to implement strict access controls as needed without breaking existing setups. If either flag is set to "*", the server will output a startup warning about potential vulnerabilities. Documentation has also been updated to highlight these security considerations.

Rincian

Terbit di NVD

13 Juni 2026

Terakhir diubah

23 Juli 2026

Status NVD

Awaiting Analysis

CVSS 4.0

9.4 (Critical), sumber google.com
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-346: Origin Validation Error

EPSS (30 hari)

0,22% peluang dieksploitasi; lebih tinggi dari 11,4% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/googleapis/mcp-toolbox/issues/3113
• https://github.com/googleapis/mcp-toolbox/pull/2254