CVE-2026-67430

Katalog CVE

CVSS 5.3 · Medium EPSS 0,51%

Kerentanan Missing Release of Memory after Effective Lifetime. Skor CVSS 3.1 5.3 (Medium) menurut github.com.

Deskripsi (NVD)

MCP Ruby SDK is the official Ruby SDK for Model Context Protocol servers and clients. Prior to 0.23.0, MCP::Server::Transports::StreamableHTTPTransport in the mcp gem does not expire sessions by default, so repeated initialize requests retain unbounded ServerSession objects and can exhaust process memory. This issue is fixed in version 0.23.0.

Rincian

Terbit di NVD

29 Juli 2026

Terakhir diubah

30 Juli 2026

Status NVD

Deferred

CVSS 3.1

5.3 (Medium), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-401: Missing Release of Memory after Effective Lifetime
CWE-770: Allocation of Resources Without Limits or Throttling

EPSS (30 hari)

0,51% peluang dieksploitasi; lebih tinggi dari 41,5% 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/modelcontextprotocol/ruby-sdk/commit/afb968c468c178c4d3294b423fcce250621692f4
• https://github.com/modelcontextprotocol/ruby-sdk/releases/tag/v0.23.0
• https://github.com/modelcontextprotocol/ruby-sdk/security/advisories/GHSA-52jp-gj8w-j6xh