CVE-2026-79749

Katalog CVE

CVSS 7.6 · High EPSS 0,45%

Kerentanan Server-Side Request Forgery (SSRF). Skor CVSS 4.0 7.6 (High) menurut github.com.

Deskripsi (NVD)

MCPHub is a unified hub for centrally managing and dynamically orchestrating multiple MCP servers/APIs into separate endpoints with flexible routing strategies. Prior to version 1.0.32, MCPHub's SSRF guard in src/utils/ssrf.ts uses a custom isBlockedIpv6 function that only checks for loopback, link-local, unique-local, IPv4-mapped, and IPv4-compatible IPv6 addresses. IPv6 transition address families -- NAT64 (64:ff9b::/96), 6to4 (2002::/16), and Teredo (2001::/32) -- are not checked. An attacker who can specify a URL for an MCP server connection can encode a private IPv4 address inside one of these IPv6 forms to bypass the SSRF guard and reach internal infrastructure. This issue has been patched in version 1.0.32.

Rincian

Terbit di NVD

31 Agustus 2026

Terakhir diubah

8 September 2026

Status NVD

Awaiting Analysis

CVSS 4.0

7.6 (High), sumber github.com
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/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-918: Server-Side Request Forgery (SSRF)

EPSS (30 hari)

0,45% peluang dieksploitasi; lebih tinggi dari 37,2% 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/samanhappy/mcphub/commit/2b10ae36112ce68deebf910b22505d44efcef552
• https://github.com/samanhappy/mcphub/pull/1069
• https://github.com/samanhappy/mcphub/releases/tag/v1.0.32
• https://github.com/samanhappy/mcphub/security/advisories/GHSA-pr4x-3pc7-2fhw