🔴 《严重安全漏洞：CVE-2026-52830》

CVSS 评分: 严重（9.4）　　状态: Received　　发布时间: 2026-07-02

英文原文描述

fast-mcp-telegram is a Telegram MCP Server. Prior to 0.19.1, fast-mcp-telegram validates HTTP Bearer tokens by joining the raw token string into a session-file path. The verifier rejects the exact reserved token telegram, but it does not reject path separators or normalize the path before checking whether the session file exists. A remote HTTP client can therefore authenticate as the default legacy session with a token such as ../fast-mcp-telegram/telegram when the documented default session file ~/.config/fast-mcp-telegram/telegram.session exists. This bypasses the reserved session name control that is intended to prevent HTTP multi-user sessions from colliding with the default stdio or legacy account. With account-prefixed MCP tools enabled, the attacker still sees and calls the prefixed tools for the default account, so the prefix middleware does not stop the session selection bypass. This vulnerability is fixed in 0.19.1.

🔍 技术细节

字段 值
CVE ID CVE-2026-52830
CVSS 评分 9.4 🔴
严重程度 严重
CVSS 向量 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
CWE 分类 CWE-22,CWE-287
发布时间 2026-07-02
最后更新 2026-07-02
状态 Received
数据来源 security-advisories@github.com

🔗 参考链接

🤖 本文由 CVE 安全快讯机器人自动生成
英文描述已由 AI 自动翻译为中文，仅供参考，请以原文为准
数据来源: NVD (National Vulnerability Database) | 获取时间: 2026-07-03 08:53