CVE-2026-63119

MEDIUM

6.2

CVSS Severity Score

EPSS Score0.0000%

EPSS Percentile0.00th

Published2026-07-29

Last Modified2026-07-29

Data SourcesNVD

Vulnerability Description

MCP Ruby SDK is the official Ruby SDK for Model Context Protocol servers and clients. Prior to 0.23.0, MCP::Server::Transports::StdioTransport and MCP::Client::Stdio in the mcp gem use IO#gets without a byte limit, allowing a peer that sends data without a newline to exhaust process memory. This issue is fixed in version 0.23.0.

Affected Platforms (CPE)

No CPE configurations currently published for this record.

References & Advisories

🔗 https://github.com/modelcontextprotocol/ruby-sdk/commit/267b8fa6285453525c81ce43db6b7dcd7a8a8c2f

🔗 https://github.com/modelcontextprotocol/ruby-sdk/releases/tag/v0.23.0

🔗 https://github.com/modelcontextprotocol/ruby-sdk/security/advisories/GHSA-7683-3w9x-ch42

Vulnerability Description

Affected Platforms (CPE)

References & Advisories

相關漏洞威脅