CVE-2026-44428

Katalog CVE

CVSS 4.7 · Medium EPSS 0,27%

Kerentanan Server-Side Request Forgery (SSRF) pada lfprojects mcp registry. Skor CVSS 3.1 4.7 (Medium) menurut NVD.

Deskripsi (NVD)

The MCP Registry provides MCP clients with a list of MCP servers, like an app store for MCP servers. Prior to 1.7.6, the client-side and server-side GitHub OIDC flow is bound only to a global audience string, not to the specific registry instance being targeted. On the client side, the publisher always appends audience=mcp-registry when requesting the GitHub Actions ID token, regardless of the selected --registry URL. On the server side, the exchange endpoint validates only that same fixed audience and then derives publish permissions directly from repository_owner. As a result, a token legitimately obtained while interacting with one registry deployment remains acceptable to any other deployment that shares the same code and audience string. This vulnerability is fixed in 1.7.6.

Rincian

Terbit di NVD

14 Mei 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

4.7 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-918: Server-Side Request Forgery (SSRF)

EPSS (30 hari)

0,27% peluang dieksploitasi; lebih tinggi dari 17,0% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/modelcontextprotocol/registry/security/advisories/GHSA-95c3-6vvw-4mrq mitigasi · advisory vendor