漏洞信息
尽管我们使用了先进的大模型技术,但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性,但请您根据实际情况进行核实和判断。
Vulnerability Title
Chainlit: SSRF via MCP SSE and streamable-http transports allows unauthenticated internal network access
Vulnerability Description
Chainlit is a Python framework for building production-ready conversational AI applications. From 2.4.0rc0 until 2.12.0, Chainlit deployments with features.mcp.enabled set to true in .chainlit/config.toml expose the POST /mcp endpoint without requiring authentication. For sse and streamable-http transports, ConnectSseMCPRequest and ConnectStreamableHttpMCPRequest in backend/chainlit/types.py accept a user-controlled url and optional headers dictionary without scheme validation, private-address filtering, or an allowlist. The connect_mcp handler in backend/chainlit/server.py passes these values to sse_client() or streamablehttp_client(), allowing the Chainlit server to make blind outbound requests to arbitrary internal or external services, including cloud metadata endpoints, with attacker-controlled Authorization and Cookie headers. The SSE URL sink has existed since 2.4.0rc0, while attacker-controlled header forwarding and streamable-http support were added in 2.6.4. The response is consumed internally and not returned, but the attacker can issue state-changing authenticated requests, discover internal services, scan ports, and probe metadata endpoints. This issue is fixed in version 2.12.0.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Vulnerability Type
服务端请求伪造(SSRF)
Vulnerability Title
Chainlit 服务端请求伪造漏洞
Vulnerability Description
Chainlit是chainlit组织开源的一个大模型对话界面框架。 Chainlit 2.4.0rc0至2.12.0之前版本存在服务端请求伪造漏洞,该漏洞源于接受用户控制的url和headers字典时缺乏方案验证、私有地址过滤或白名单,可能导致攻击者利用服务器发起盲出站请求,发现内部服务、扫描端口、探测元数据端点。
CVSS Information
N/A
Vulnerability Type
N/A